feat(invitation-signup): optimize user registration process and enhance localization

- Introduced a new SQL migration to optimize the invitation signup process, allowing invited users to skip organization and team creation.
- Updated the `register_user` and `register_google_user` functions to handle invitation signups effectively.
- Enhanced the `deserialize_user` function to include an `invitation_accepted` flag.
- Added new localization keys for creating organizations and related messages in multiple languages, improving user experience across the application.
- Updated the SwitchTeamButton component to support organization creation and improved styling for better usability.

worklenz-frontend/src/pages/auth/authenticating.tsx

@@ -41,6 +41,17 @@ const AuthenticatingPage: React.FC = () => {
         setSession(session.user);
         dispatch(setUser(session.user));
 
+        // Check if user joined via invitation
+        if (session.user.invitation_accepted) {
+          // For invited users, redirect directly to their team
+          // They don't need to go through setup as they're joining an existing team
+          setTimeout(() => {
+            handleSuccessRedirect();
+          }, REDIRECT_DELAY);
+          return;
+        }
+
+        // For regular users (team owners), check if setup is needed
         if (!session.user.setup_completed) {
           return navigate('/worklenz/setup');
         }