refactor: improvements to the auth implementation in admin dashboard (#3444)

* refactor: abstract axios queries to a separate helper file

* chore: delete unnecessary file

* chore: remove unnecessary console logs

* refactor: updated urls for api and authquery helpers

* refactor: updated auth implementation

* refactor: use default axios instance

* chore: improve code readability

* refactor: separate instances for rest and gql calls

* refactor: removed async await from functions that do not need them

* refactor: removed probable login and probable user from the auth system

* refactor: better error handling in login component

* chore: deleted unnecessary files and restructured some files

* feat: new errors file with typed error message formats

* refactor: removed unwanted usage of async await

* refactor: optimizing the usage and return of promises in auth flow

* refactor: convey boolean return type in a better way

* chore: apply suggestions

* refactor: handle case when mailcatcher is not active

---------

Co-authored-by: nivedin <nivedinp@gmail.com>
Co-authored-by: James George <jamesgeorge998001@gmail.com>

packages/hoppscotch-sh-admin/src/components/app/Header.vue

@@ -89,8 +89,8 @@ const t = useI18n();
 const { isOpen, isExpanded } = useSidebar();
 
 const currentUser = useReadonlyStream(
-  auth.getProbableUserStream(),
-  auth.getProbableUser()
+  auth.getCurrentUserStream(),
+  auth.getCurrentUser()
 );
 
 const expandSidebar = () => {