minor UI tweaks to loading screens and added proper fallback logic when the client is waiting for server response

Author: neel1996

build/asset-manifest.json

@@ -1,8 +1,8 @@
 {
   "files": {
     "main.css": "/static/css/main.bece8f5e.chunk.css",
-    "main.js": "/static/js/main.3ffeb2b0.chunk.js",
-    "main.js.map": "/static/js/main.3ffeb2b0.chunk.js.map",
+    "main.js": "/static/js/main.bb4719f5.chunk.js",
+    "main.js.map": "/static/js/main.bb4719f5.chunk.js.map",
     "runtime-main.js": "/static/js/runtime-main.f623be64.js",
     "runtime-main.js.map": "/static/js/runtime-main.f623be64.js.map",
     "static/js/2.a04ba513.chunk.js": "/static/js/2.a04ba513.chunk.js",
@@ -916,7 +916,7 @@
     "static/js/456.5871dfd5.chunk.js": "/static/js/456.5871dfd5.chunk.js",
     "static/js/456.5871dfd5.chunk.js.map": "/static/js/456.5871dfd5.chunk.js.map",
     "index.html": "/index.html",
-    "precache-manifest.6fe8aaf3783d206aa9184defd501d15b.js": "/precache-manifest.6fe8aaf3783d206aa9184defd501d15b.js",
+    "precache-manifest.710bd1c6139261505928ec03d7c6c14f.js": "/precache-manifest.710bd1c6139261505928ec03d7c6c14f.js",
     "service-worker.js": "/service-worker.js",
     "static/css/main.bece8f5e.chunk.css.map": "/static/css/main.bece8f5e.chunk.css.map",
     "static/js/2.a04ba513.chunk.js.LICENSE.txt": "/static/js/2.a04ba513.chunk.js.LICENSE.txt",
@@ -927,6 +927,6 @@
     "static/js/runtime-main.f623be64.js",
     "static/js/2.a04ba513.chunk.js",
     "static/css/main.bece8f5e.chunk.css",
-    "static/js/main.3ffeb2b0.chunk.js"
+    "static/js/main.bb4719f5.chunk.js"
   ]
 }