fix: blank screen in admin dashboard on authentication problems (#3385)

* fix: dashboard logs out user when cookie expires or is unauthorized

* fix: handles the 401 error thrown when trying to refresh tokens

* chore: updated wrong logic when returning state in refresh token function

* feat: introduced auth exchange to urql client to check for errors on each backend call

* fix: prevent multiple window reloads

---------

Co-authored-by: jamesgeorge007 <jamesgeorge998001@gmail.com>

packages/hoppscotch-sh-admin/package.json

@@ -22,7 +22,8 @@
     "@intlify/unplugin-vue-i18n": "^1.2.0",
     "@types/cors": "^2.8.13",
     "@types/express": "^4.17.15",
-    "@urql/vue": "^1.0.4",
+    "@urql/exchange-auth": "^2.1.6",
+    "@urql/vue": "^1.1.2",
     "@vueuse/core": "^9.10.0",
     "axios": "^0.21.4",
     "cors": "^2.8.5",