Authentication Workflow fixes. Redirection fixes (#832)

* auth integration fixes

* auth integration fixes

* auth integration fixes

* auth integration fixes

* dev: update user api to return fallback workspace and improve the structure of the response

* dev: fix the issue keyerror and move onboarding logic to serializer method field

* dev: use-user-auth hook imlemented for route access validation and build issues resolved effected by user payload

* fix: global theme color fix

* style: new onboarding ui , fix: use-user-auth hook implemented

* fix: command palette, project invite modal and issue detail page mutation type fix

* fix: onboarding redirection fix

* dev: build isuue resolved

* fix: use user auth hook fix

* fix: sign in toast alert fix, sign out redirection fix and user theme error fix

* fix: user response fix

* fix: unAuthorizedStatus logic updated

---------

Co-authored-by: pablohashescobar <nikhilschacko@gmail.com>
Co-authored-by: gurusainath <gurusainath007@gmail.com>
Co-authored-by: anmolsinghbhatia <anmolsinghbhatia@caravel.tech>

apps/app/pages/_error.tsx

@@ -26,7 +26,7 @@ const CustomErrorComponent = () => {
           message: "Failed to sign out. Please try again.",
         })
       )
-      .finally(() => router.push("/signin"));
+      .finally(() => router.push("/"));
   };
 
   return (