diff --git a/backend/Pipfile.lock b/backend/Pipfile.lock
index 2e754d5..d93e354 100644
--- a/backend/Pipfile.lock
+++ b/backend/Pipfile.lock
@@ -18,31 +18,34 @@
     "default": {
         "asgiref": {
             "hashes": [
-                "sha256:7e06d934a7718bf3975acbf87780ba678957b87c7adc056f13b6215d610695a0",
-                "sha256:ea448f92fc35a0ef4b1508f53a04c4670255a3f33d22a81c8fc9c872036adbe5"
+                "sha256:4ef1ab46b484e3c706329cedeff284a5d40824200638503f5768edb6de7d58e9",
+                "sha256:ffc141aa908e6f175673e7b1b3b7af4fdb0ecb738fc5c8b88f69f055c2415214"
             ],
-            "version": "==3.2.3"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.4.1"
         },
         "certifi": {
             "hashes": [
-                "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3",
-                "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
+                "sha256:2bbf76fd432960138b3ef6dda3dde0544f27cbf8546c458e60baf371917ba9ee",
+                "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"
             ],
-            "version": "==2019.11.28"
+            "version": "==2021.5.30"
         },
-        "chardet": {
+        "charset-normalizer": {
             "hashes": [
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
+                "sha256:0c8911edd15d19223366a194a513099a302055a962bca2cec0f54b8b63175d8b",
+                "sha256:f23667ebe1084be45f6ae0538e4a5a865206544097e4e8bbcacf42cd02a348f3"
             ],
-            "version": "==3.0.4"
+            "markers": "python_version >= '3'",
+            "version": "==2.0.4"
         },
         "defusedxml": {
             "hashes": [
-                "sha256:6687150770438374ab581bb7a1b327a847dd9c5749e396102de3fad4e8a3ef93",
-                "sha256:f684034d135af4c6cbb949b8a4d2ed61634515257a67299e5f940fbaa34377f5"
+                "sha256:1bb3032db185915b62d7c6209c5a8792be6a32ab2fedacc84e01b52c51aa3e69",
+                "sha256:a352e7e428770286cc899e2542b6cdaedb2b4953ff269a210103ec58f6198a61"
             ],
-            "version": "==0.6.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==0.7.1"
         },
         "django": {
             "hashes": [
@@ -68,101 +71,140 @@
         },
         "djangorestframework": {
             "hashes": [
-                "sha256:05809fc66e1c997fd9a32ea5730d9f4ba28b109b9da71fccfa5ff241201fd0a4",
-                "sha256:e782087823c47a26826ee5b6fa0c542968219263fb3976ec3c31edab23a4001f"
+                "sha256:6d1d59f623a5ad0509fe0d6bfe93cbdfe17b8116ebc8eda86d45f6e16e819aaf",
+                "sha256:f747949a8ddac876e879190df194b925c177cdeb725a099db1460872f7c0a7f2"
             ],
-            "version": "==3.11.0"
+            "markers": "python_version >= '3.5'",
+            "version": "==3.12.4"
         },
         "idna": {
             "hashes": [
-                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
-                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
+                "sha256:14475042e284991034cb48e06f6851428fb14c4dc953acd9be9a5e95c7b6dd7a",
+                "sha256:467fbad99067910785144ce333826c71fb0e63a425657295239737f7ecd125f3"
             ],
-            "version": "==2.8"
+            "markers": "python_version >= '3'",
+            "version": "==3.2"
         },
         "oauthlib": {
             "hashes": [
-                "sha256:bee41cc35fcca6e988463cacc3bcb8a96224f470ca547e697b604cc697b2f889",
-                "sha256:df884cd6cbe20e32633f1db1072e9356f53638e4361bef4e8b03c9127c9328ea"
+                "sha256:42bf6354c2ed8c6acb54d971fce6f88193d97297e18602a3a886603f9d7730cc",
+                "sha256:8f0215fcc533dd8dd1bee6f4c412d4f0cd7297307d43ac61666389e3bc3198a3"
             ],
-            "version": "==3.1.0"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.1.1"
         },
         "pillow": {
             "hashes": [
-                "sha256:0a628977ac2e01ca96aaae247ec2bd38e729631ddf2221b4b715446fd45505be",
-                "sha256:4d9ed9a64095e031435af120d3c910148067087541131e82b3e8db302f4c8946",
-                "sha256:54ebae163e8412aff0b9df1e88adab65788f5f5b58e625dc5c7f51eaf14a6837",
-                "sha256:5bfef0b1cdde9f33881c913af14e43db69815c7e8df429ceda4c70a5e529210f",
-                "sha256:5f3546ceb08089cedb9e8ff7e3f6a7042bb5b37c2a95d392fb027c3e53a2da00",
-                "sha256:5f7ae9126d16194f114435ebb79cc536b5682002a4fa57fa7bb2cbcde65f2f4d",
-                "sha256:62a889aeb0a79e50ecf5af272e9e3c164148f4bd9636cc6bcfa182a52c8b0533",
-                "sha256:7406f5a9b2fd966e79e6abdaf700585a4522e98d6559ce37fc52e5c955fade0a",
-                "sha256:8453f914f4e5a3d828281a6628cf517832abfa13ff50679a4848926dac7c0358",
-                "sha256:87269cc6ce1e3dee11f23fa515e4249ae678dbbe2704598a51cee76c52e19cda",
-                "sha256:875358310ed7abd5320f21dd97351d62de4929b0426cdb1eaa904b64ac36b435",
-                "sha256:8ac6ce7ff3892e5deaab7abaec763538ffd011f74dc1801d93d3c5fc541feee2",
-                "sha256:91b710e3353aea6fc758cdb7136d9bbdcb26b53cefe43e2cba953ac3ee1d3313",
-                "sha256:9d2ba4ed13af381233e2d810ff3bab84ef9f18430a9b336ab69eaf3cd24299ff",
-                "sha256:a62ec5e13e227399be73303ff301f2865bf68657d15ea50b038d25fc41097317",
-                "sha256:ab76e5580b0ed647a8d8d2d2daee170e8e9f8aad225ede314f684e297e3643c2",
-                "sha256:bf4003aa538af3f4205c5fac56eacaa67a6dd81e454ffd9e9f055fff9f1bc614",
-                "sha256:bf598d2e37cf8edb1a2f26ed3fb255191f5232badea4003c16301cb94ac5bdd0",
-                "sha256:c18f70dc27cc5d236f10e7834236aff60aadc71346a5bc1f4f83a4b3abee6386",
-                "sha256:c5ed816632204a2fc9486d784d8e0d0ae754347aba99c811458d69fcdfd2a2f9",
-                "sha256:dc058b7833184970d1248135b8b0ab702e6daa833be14035179f2acb78ff5636",
-                "sha256:ff3797f2f16bf9d17d53257612da84dd0758db33935777149b3334c01ff68865"
+                "sha256:0412516dcc9de9b0a1e0ae25a280015809de8270f134cc2c1e32c4eeb397cf30",
+                "sha256:04835e68ef12904bc3e1fd002b33eea0779320d4346082bd5b24bec12ad9c3e9",
+                "sha256:06d1adaa284696785375fa80a6a8eb309be722cf4ef8949518beb34487a3df71",
+                "sha256:085a90a99404b859a4b6c3daa42afde17cb3ad3115e44a75f0d7b4a32f06a6c9",
+                "sha256:0b9911ec70731711c3b6ebcde26caea620cbdd9dcb73c67b0730c8817f24711b",
+                "sha256:10e00f7336780ca7d3653cf3ac26f068fa11b5a96894ea29a64d3dc4b810d630",
+                "sha256:11c27e74bab423eb3c9232d97553111cc0be81b74b47165f07ebfdd29d825875",
+                "sha256:11eb7f98165d56042545c9e6db3ce394ed8b45089a67124298f0473b29cb60b2",
+                "sha256:13654b521fb98abdecec105ea3fb5ba863d1548c9b58831dd5105bb3873569f1",
+                "sha256:15ccb81a6ffc57ea0137f9f3ac2737ffa1d11f786244d719639df17476d399a7",
+                "sha256:18a07a683805d32826c09acfce44a90bf474e6a66ce482b1c7fcd3757d588df3",
+                "sha256:19ec4cfe4b961edc249b0e04b5618666c23a83bc35842dea2bfd5dfa0157f81b",
+                "sha256:1c3ff00110835bdda2b1e2b07f4a2548a39744bb7de5946dc8e95517c4fb2ca6",
+                "sha256:27a330bf7014ee034046db43ccbb05c766aa9e70b8d6c5260bfc38d73103b0ba",
+                "sha256:2b11c9d310a3522b0fd3c35667914271f570576a0e387701f370eb39d45f08a4",
+                "sha256:2c661542c6f71dfd9dc82d9d29a8386287e82813b0375b3a02983feac69ef864",
+                "sha256:2cde7a4d3687f21cffdf5bb171172070bb95e02af448c4c8b2f223d783214056",
+                "sha256:2d5e9dc0bf1b5d9048a94c48d0813b6c96fccfa4ccf276d9c36308840f40c228",
+                "sha256:2f23b2d3079522fdf3c09de6517f625f7a964f916c956527bed805ac043799b8",
+                "sha256:35d27687f027ad25a8d0ef45dd5208ef044c588003cdcedf05afb00dbc5c2deb",
+                "sha256:35d409030bf3bd05fa66fb5fdedc39c521b397f61ad04309c90444e893d05f7d",
+                "sha256:4326ea1e2722f3dc00ed77c36d3b5354b8fb7399fb59230249ea6d59cbed90da",
+                "sha256:4abc247b31a98f29e5224f2d31ef15f86a71f79c7f4d2ac345a5d551d6393073",
+                "sha256:4d89a2e9219a526401015153c0e9dd48319ea6ab9fe3b066a20aa9aee23d9fd3",
+                "sha256:4e59e99fd680e2b8b11bbd463f3c9450ab799305d5f2bafb74fefba6ac058616",
+                "sha256:548794f99ff52a73a156771a0402f5e1c35285bd981046a502d7e4793e8facaa",
+                "sha256:56fd98c8294f57636084f4b076b75f86c57b2a63a8410c0cd172bc93695ee979",
+                "sha256:59697568a0455764a094585b2551fd76bfd6b959c9f92d4bdec9d0e14616303a",
+                "sha256:6bff50ba9891be0a004ef48828e012babaaf7da204d81ab9be37480b9020a82b",
+                "sha256:6cb3dd7f23b044b0737317f892d399f9e2f0b3a02b22b2c692851fb8120d82c6",
+                "sha256:7dbfbc0020aa1d9bc1b0b8bcf255a7d73f4ad0336f8fd2533fcc54a4ccfb9441",
+                "sha256:838eb85de6d9307c19c655c726f8d13b8b646f144ca6b3771fa62b711ebf7624",
+                "sha256:8b68f565a4175e12e68ca900af8910e8fe48aaa48fd3ca853494f384e11c8bcd",
+                "sha256:8f284dc1695caf71a74f24993b7c7473d77bc760be45f776a2c2f4e04c170550",
+                "sha256:963ebdc5365d748185fdb06daf2ac758116deecb2277ec5ae98139f93844bc09",
+                "sha256:a048dad5ed6ad1fad338c02c609b862dfaa921fcd065d747194a6805f91f2196",
+                "sha256:a1bd983c565f92779be456ece2479840ec39d386007cd4ae83382646293d681b",
+                "sha256:a66566f8a22561fc1a88dc87606c69b84fa9ce724f99522cf922c801ec68f5c1",
+                "sha256:bcb04ff12e79b28be6c9988f275e7ab69f01cc2ba319fb3114f87817bb7c74b6",
+                "sha256:bd24054aaf21e70a51e2a2a5ed1183560d3a69e6f9594a4bfe360a46f94eba83",
+                "sha256:be25cb93442c6d2f8702c599b51184bd3ccd83adebd08886b682173e09ef0c3f",
+                "sha256:c691b26283c3a31594683217d746f1dad59a7ae1d4cfc24626d7a064a11197d4",
+                "sha256:cc9d0dec711c914ed500f1d0d3822868760954dce98dfb0b7382a854aee55d19",
+                "sha256:ce2e5e04bb86da6187f96d7bab3f93a7877830981b37f0287dd6479e27a10341",
+                "sha256:ce651ca46d0202c302a535d3047c55a0131a720cf554a578fc1b8a2aff0e7d96",
+                "sha256:d0c8ebbfd439c37624db98f3877d9ed12c137cadd99dde2d2eae0dab0bbfc355",
+                "sha256:d675a876b295afa114ca8bf42d7f86b5fb1298e1b6bb9a24405a3f6c8338811c",
+                "sha256:dde3f3ed8d00c72631bc19cbfff8ad3b6215062a5eed402381ad365f82f0c18c",
+                "sha256:e5a31c07cea5edbaeb4bdba6f2b87db7d3dc0f446f379d907e51cc70ea375629",
+                "sha256:f514c2717012859ccb349c97862568fdc0479aad85b0270d6b5a6509dbc142e2",
+                "sha256:fc0db32f7223b094964e71729c0361f93db43664dd1ec86d3df217853cedda87",
+                "sha256:fd4fd83aa912d7b89b4b4a1580d30e2a4242f3936882a3f433586e5ab97ed0d5",
+                "sha256:feb5db446e96bfecfec078b943cc07744cc759893cef045aa8b8b6d6aaa8274e"
             ],
             "index": "pypi",
-            "version": "==7.0.0"
+            "version": "==8.3.2"
         },
         "python3-openid": {
             "hashes": [
-                "sha256:0086da6b6ef3161cfe50fb1ee5cceaf2cda1700019fda03c2c5c440ca6abe4fa",
-                "sha256:628d365d687e12da12d02c6691170f4451db28d6d68d050007e4a40065868502"
+                "sha256:33fbf6928f401e0b790151ed2b5290b02545e8775f982485205a066f874aaeaf",
+                "sha256:6626f771e0417486701e0b4daff762e7212e820ca5b29fcc0d05f6f8736dfa6b"
             ],
-            "version": "==3.1.0"
+            "version": "==3.2.0"
         },
         "pytz": {
             "hashes": [
-                "sha256:1c557d7d0e871de1f5ccd5833f60fb2550652da6be2693c1e02300743d21500d",
-                "sha256:b02c06db6cf09c12dd25137e563b31700d3b80fcc4ad23abb7a315f2789819be"
+                "sha256:83a4a90894bf38e243cf052c8b58f381bfe9a7a483f6a9cab140bc7f702ac4da",
+                "sha256:eb10ce3e7736052ed3623d49975ce333bcd712c7bb19a58b9e2089d4057d0798"
             ],
-            "version": "==2019.3"
+            "version": "==2021.1"
         },
         "requests": {
             "hashes": [
-                "sha256:11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4",
-                "sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31"
+                "sha256:6c1246513ecd5ecd4528a0906f910e8f0f9c6b8ec72030dc9fd154dc1a6efd24",
+                "sha256:b8aa58f8cf793ffd8782d3d8cb19e66ef36f7aba4353eec859e74678b01b07a7"
             ],
-            "version": "==2.22.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
+            "version": "==2.26.0"
         },
         "requests-oauthlib": {
             "hashes": [
                 "sha256:7f71572defaecd16372f9006f33c2ec8c077c3cfa6f5911a9a90202beb513f3d",
-                "sha256:b4261601a71fd721a8bd6d7aa1cc1d6a8a93b4a9f5e96626f8e4d91e8beeaa6a"
+                "sha256:b4261601a71fd721a8bd6d7aa1cc1d6a8a93b4a9f5e96626f8e4d91e8beeaa6a",
+                "sha256:fa6c47b933f01060936d87ae9327fead68768b69c6c9ea2109c48be30f2d4dbc"
             ],
             "version": "==1.3.0"
         },
         "six": {
             "hashes": [
-                "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a",
-                "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"
+                "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
+                "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
-            "version": "==1.14.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.16.0"
         },
         "sqlparse": {
             "hashes": [
-                "sha256:40afe6b8d4b1117e7dff5504d7a8ce07d9a1b15aeeade8a2d10f130a834f8177",
-                "sha256:7c3dca29c022744e95b547e867cee89f4fce4373f3549ccd8797d8eb52cdb873"
+                "sha256:017cde379adbd6a1f15a61873f43e8274179378e95ef3fede90b5aa64d304ed0",
+                "sha256:0f91fd2e829c44362cbcfab3e9ae12e22badaa8a29ad5ff599f9ec109f0454e8"
             ],
-            "version": "==0.3.0"
+            "markers": "python_version >= '3.5'",
+            "version": "==0.4.1"
         },
         "urllib3": {
             "hashes": [
-                "sha256:2f3db8b19923a873b3e5256dc9c2dedfa883e33d87c690d9c7913e1f40673cdc",
-                "sha256:87716c2d2a7121198ebcb7ce7cccf6ce5e9ba539041cfbaeecfb641dc0bf6acc"
+                "sha256:39fb8672126159acb139a7718dd10806104dec1e2f0f6c88aab05d17df10c8d4",
+                "sha256:f57b4c16c62fa2760b7e3d97c35b255512fb6b59a259730f36ba32ce9f8e342f"
             ],
-            "version": "==1.25.8"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
+            "version": "==1.26.6"
         }
     },
     "develop": {
@@ -171,21 +213,15 @@
                 "sha256:71ea07f44df9568a75d0f354c49143a4575d90645e9fead6dfb52c26a85ed13a",
                 "sha256:840947ebfa8b58f318d42301cf8c0a20fd794a33b61cc4638e28e9e61ba32f42"
             ],
+            "markers": "python_version >= '3.5'",
             "version": "==2.3.3"
         },
-        "colorama": {
-            "hashes": [
-                "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff",
-                "sha256:e96da0d330793e2cb9485e9ddfd918d456036c7149416295932478192f4436a1"
-            ],
-            "markers": "sys_platform == 'win32'",
-            "version": "==0.4.3"
-        },
         "isort": {
             "hashes": [
                 "sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1",
                 "sha256:6e811fcb295968434526407adb8796944f1988c5b65e8139058f2014cbe100fd"
             ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==4.3.21"
         },
         "lazy-object-proxy": {
@@ -212,6 +248,7 @@
                 "sha256:efa1909120ce98bbb3777e8b6f92237f5d5c8ea6758efea36a473e1d38f7d3e4",
                 "sha256:f3900e8a5de27447acbf900b4750b0ddfd7ec1ea7fbaf11dfa911141bc522af0"
             ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.4.3"
         },
         "mccabe": {
@@ -231,10 +268,11 @@
         },
         "six": {
             "hashes": [
-                "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a",
-                "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"
+                "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
+                "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
-            "version": "==1.14.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.16.0"
         },
         "wrapt": {
             "hashes": [