[WEB-1404] chore: auth ui / ux fixes (#4552)

* chore: update deactivated account alert message to show support email if available in env.

* chore: clear error_info on email check.

* chore: fix log-in / sign-up forms alignment and minor ux copy fix.

* fix: auth redirection to `/sign-in` issue.

* chore: update `back to sign in` url in forgot password screen.

web/next.config.js

@@ -41,6 +41,16 @@ const nextConfig = {
         source: "/sign-in",
         destination: "/",
         permanent: true
+      },
+      {
+        source: "/register",
+        destination: "/sign-up",
+        permanent: true
+      },
+      {
+        source: "/login",
+        destination: "/",
+        permanent: true
       }
     ]
   },