diff --git a/package.json b/package.json
index f8e1e61..d912aa3 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,6 @@
     "moment": "^2.24.0",
     "popper.js": "^1.15.0",
     "remark-toc": "^6.0.0",
-    "sharp": "^0.23.0"
+    "sharp": "^0.30.5"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index b616834..5929f99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2362,7 +2362,7 @@ chokidar@^3.4.1:
   optionalDependencies:
     fsevents "~2.1.2"
 
-chownr@^1.1.1, chownr@^1.1.3:
+chownr@^1.1.1:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
   integrity sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==
@@ -2492,6 +2492,14 @@ color-string@^1.5.3, color-string@^1.5.4:
     color-name "^1.0.0"
     simple-swizzle "^0.2.2"
 
+color-string@^1.9.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.9.1.tgz#4467f9146f036f855b764dfb5bf8582bf342c7a4"
+  integrity sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg==
+  dependencies:
+    color-name "^1.0.0"
+    simple-swizzle "^0.2.2"
+
 color@^3.0.0, color@^3.1.2:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/color/-/color-3.1.3.tgz#ca67fb4e7b97d611dcde39eceed422067d91596e"
@@ -2500,6 +2508,14 @@ color@^3.0.0, color@^3.1.2:
     color-convert "^1.9.1"
     color-string "^1.5.4"
 
+color@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/color/-/color-4.2.3.tgz#d781ecb5e57224ee43ea9627560107c0e0c6463a"
+  integrity sha512-1rXeuUUiGGrykh+CeBdu5Ie7OJwinCgQY0bc7GCRxy5xVHy+moaqkpL/jqQq0MtQOeYcrqEz4abc5f0KtU7W4A==
+  dependencies:
+    color-convert "^2.0.1"
+    color-string "^1.9.0"
+
 colorette@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.1.tgz#4d0b921325c14faf92633086a536db6e89564b1b"
@@ -3191,6 +3207,11 @@ detect-libc@^1.0.3:
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
   integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
 
+detect-libc@^2.0.0, detect-libc@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-2.0.1.tgz#e1897aa88fa6ad197862937fbc0441ef352ee0cd"
+  integrity sha512-463v3ZeIrcWtdgIg6vI6XUncguvr2TnGl4SzDXinkt9mSLpBJKXT3mW6xT3VQdDN11+WVs29pgvivTc4Lp8v+w==
+
 detect-newline@3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-3.1.0.tgz#576f5dfc63ae1a192ff192d8ad3af6308991b651"
@@ -6304,7 +6325,7 @@ minipass@^3.0.0:
   dependencies:
     yallist "^4.0.0"
 
-minizlib@^2.1.0, minizlib@^2.1.1:
+minizlib@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-2.1.2.tgz#e90d3466ba209b932451508a11ce3d3632145931"
   integrity sha512-bAxsR8BVfj60DWXHE3u30oHzfl4G7khkSuPW+qvpd7jFRHm7dLxOjUk1EHACJ/hxLY8phGJ0YhYHZo7jil7Qdg==
@@ -6341,7 +6362,7 @@ mkdirp-classic@^0.5.2, mkdirp-classic@^0.5.3:
   resolved "https://registry.yarnpkg.com/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz#fa10c9115cc6d8865be221ba47ee9bed78601113"
   integrity sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==
 
-mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@^0.5.3, mkdirp@^0.5.5, mkdirp@~0.5.1:
+mkdirp@^0.5.1, mkdirp@^0.5.3, mkdirp@^0.5.5, mkdirp@~0.5.1:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
   integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
@@ -6399,7 +6420,7 @@ ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
-nan@^2.12.1, nan@^2.14.0:
+nan@^2.12.1:
   version "2.14.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.2.tgz#f5376400695168f4cc694ac9393d0c9585eeea19"
   integrity sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==
@@ -6460,11 +6481,23 @@ node-abi@^2.7.0:
   dependencies:
     semver "^5.4.1"
 
+node-abi@^3.3.0:
+  version "3.22.0"
+  resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-3.22.0.tgz#00b8250e86a0816576258227edbce7bbe0039362"
+  integrity sha512-u4uAs/4Zzmp/jjsD9cyFYDXeISfUWaAVWshPmDZOFOv4Xl4SbzTXm53I04C2uRueYJ+0t5PEtLH/owbn2Npf/w==
+  dependencies:
+    semver "^7.3.5"
+
 node-addon-api@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-3.1.0.tgz#98b21931557466c6729e51cb77cd39c965f42239"
   integrity sha512-flmrDNB06LIl5lywUz7YlNGZH/5p0M7W28k8hzd9Lshtdh1wshD2Y+U4h9LD6KObOy1f+fEVdgprPrEymjM5uw==
 
+node-addon-api@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-5.0.0.tgz#7d7e6f9ef89043befdb20c1989c905ebde18c501"
+  integrity sha512-CvkDw2OEnme7ybCykJpVcKH+uAOLV2qLqiyla128dN9TkEWfrYmxG6C2boDe5KcNQqZF3orkqzGgOMvZ/JNekA==
+
 node-libs-browser@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-2.2.1.tgz#b64f513d18338625f90346d27b0d235e631f6425"
@@ -7460,7 +7493,7 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.27, postcss@^7.0.3
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-prebuild-install@^5.3.3, prebuild-install@^5.3.4:
+prebuild-install@^5.3.4:
   version "5.3.6"
   resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.6.tgz#7c225568d864c71d89d07f8796042733a3f54291"
   integrity sha512-s8Aai8++QQGi4sSbs/M1Qku62PFK49Jm1CbgXklGz4nmHveDq0wzJkg7Na5QbnO1uNH8K7iqx2EQ/mV0MZEmOg==
@@ -7481,6 +7514,25 @@ prebuild-install@^5.3.3, prebuild-install@^5.3.4:
     tunnel-agent "^0.6.0"
     which-pm-runs "^1.0.0"
 
+prebuild-install@^7.1.0:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-7.1.0.tgz#991b6ac16c81591ba40a6d5de93fb33673ac1370"
+  integrity sha512-CNcMgI1xBypOyGqjp3wOc8AAo1nMhZS3Cwd3iHIxOdAUbb+YxdNuM4Z5iIrZ8RLvOsf3F3bl7b7xGq6DjQoNYA==
+  dependencies:
+    detect-libc "^2.0.0"
+    expand-template "^2.0.3"
+    github-from-package "0.0.0"
+    minimist "^1.2.3"
+    mkdirp-classic "^0.5.3"
+    napi-build-utils "^1.0.1"
+    node-abi "^3.3.0"
+    npmlog "^4.0.1"
+    pump "^3.0.0"
+    rc "^1.2.7"
+    simple-get "^4.0.0"
+    tar-fs "^2.0.0"
+    tunnel-agent "^0.6.0"
+
 prepend-http@^1.0.0, prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
@@ -8212,10 +8264,10 @@ semver@^6.0.0, semver@^6.1.0, semver@^6.2.0, semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
-semver@^7.3.2:
-  version "7.3.4"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.4.tgz#27aaa7d2e4ca76452f98d3add093a72c943edc97"
-  integrity sha512-tCfb2WLjqFAtXn4KEdxIhalnRtoKFN7nAwj0B3ZXCbQloV2tq5eDbcTmT68JJD3nRJq24/XgxtQKFIpQdtvmVw==
+semver@^7.3.2, semver@^7.3.5, semver@^7.3.7:
+  version "7.3.7"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.7.tgz#12c5b649afdbf9049707796e22a4028814ce523f"
+  integrity sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==
   dependencies:
     lru-cache "^6.0.0"
 
@@ -8300,21 +8352,6 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-sharp@^0.23.0:
-  version "0.23.4"
-  resolved "https://registry.yarnpkg.com/sharp/-/sharp-0.23.4.tgz#ca36067cb6ff7067fa6c77b01651cb9a890f8eb3"
-  integrity sha512-fJMagt6cT0UDy9XCsgyLi0eiwWWhQRxbwGmqQT6sY8Av4s0SVsT/deg8fobBQCTDU5iXRgz0rAeXoE2LBZ8g+Q==
-  dependencies:
-    color "^3.1.2"
-    detect-libc "^1.0.3"
-    nan "^2.14.0"
-    npmlog "^4.1.2"
-    prebuild-install "^5.3.3"
-    semver "^6.3.0"
-    simple-get "^3.1.0"
-    tar "^5.0.5"
-    tunnel-agent "^0.6.0"
-
 sharp@^0.25.2:
   version "0.25.4"
   resolved "https://registry.yarnpkg.com/sharp/-/sharp-0.25.4.tgz#1a8e542144a07ab7e9316ab89de80182b827c363"
@@ -8330,6 +8367,20 @@ sharp@^0.25.2:
     tar "^6.0.2"
     tunnel-agent "^0.6.0"
 
+sharp@^0.30.5:
+  version "0.30.5"
+  resolved "https://registry.yarnpkg.com/sharp/-/sharp-0.30.5.tgz#81c36fd05624978384ac6bd2744d23f9c82edefd"
+  integrity sha512-0T28KxqY4DzUMLSAp1/IhGVeHpPIQyp1xt7esmuXCAfyi/+6tYMUeRhQok+E/+E52Yk5yFjacXp90cQOkmkl4w==
+  dependencies:
+    color "^4.2.3"
+    detect-libc "^2.0.1"
+    node-addon-api "^5.0.0"
+    prebuild-install "^7.1.0"
+    semver "^7.3.7"
+    simple-get "^4.0.1"
+    tar-fs "^2.1.1"
+    tunnel-agent "^0.6.0"
+
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
@@ -8377,7 +8428,7 @@ simple-concat@^1.0.0:
   resolved "https://registry.yarnpkg.com/simple-concat/-/simple-concat-1.0.1.tgz#f46976082ba35c2263f1c8ab5edfe26c41c9552f"
   integrity sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==
 
-simple-get@^3.0.3, simple-get@^3.1.0:
+simple-get@^3.0.3:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-3.1.0.tgz#b45be062435e50d159540b576202ceec40b9c6b3"
   integrity sha512-bCR6cP+aTdScaQCnQKbPKtJOKDp/hj9EDLJo3Nw4y1QksqaovlW/bnptB6/c1e+qmNIDHRK+oXFDdEqBT8WzUA==
@@ -8386,10 +8437,10 @@ simple-get@^3.0.3, simple-get@^3.1.0:
     once "^1.3.1"
     simple-concat "^1.0.0"
 
-simple-get@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-4.0.0.tgz#73fa628278d21de83dadd5512d2cc1f4872bd675"
-  integrity sha512-ZalZGexYr3TA0SwySsr5HlgOOinS4Jsa8YB2GJ6lUNAazyAu4KG/VmzMTwAt2YVXzzVj8QmefmAonZIK2BSGcQ==
+simple-get@^4.0.0, simple-get@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-4.0.1.tgz#4a39db549287c979d352112fa03fd99fd6bc3543"
+  integrity sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==
   dependencies:
     decompress-response "^6.0.0"
     once "^1.3.1"
@@ -8921,7 +8972,7 @@ tapable@^1.0.0, tapable@^1.1.3:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.3.tgz#a1fccc06b58db61fd7a45da2da44f5f3a3e67ba2"
   integrity sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==
 
-tar-fs@^2.0.0:
+tar-fs@^2.0.0, tar-fs@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-2.1.1.tgz#489a15ab85f1f0befabb370b7de4f9eb5cbe8784"
   integrity sha512-V0r2Y9scmbDRLCNex/+hYzvp/zyYjvFbHPNgVTKfQvVrb6guiE/fxP+XblDNR011utopbkex2nM4dHNV6GDsng==
@@ -8955,18 +9006,6 @@ tar-stream@^2.1.4:
     inherits "^2.0.3"
     readable-stream "^3.1.1"
 
-tar@^5.0.5:
-  version "5.0.5"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-5.0.5.tgz#03fcdb7105bc8ea3ce6c86642b9c942495b04f93"
-  integrity sha512-MNIgJddrV2TkuwChwcSNds/5E9VijOiw7kAc1y5hTNJoLDSuIyid2QtLYiCYNnICebpuvjhPQZsXwUL0O3l7OQ==
-  dependencies:
-    chownr "^1.1.3"
-    fs-minipass "^2.0.0"
-    minipass "^3.0.0"
-    minizlib "^2.1.0"
-    mkdirp "^0.5.0"
-    yallist "^4.0.0"
-
 tar@^6.0.2:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/tar/-/tar-6.0.5.tgz#bde815086e10b39f1dcd298e89d596e1535e200f"