Add clock asset and enhance meeting time dialogs

- Added a new clock icon asset to the AssetsManager.
- Updated MeetingTimeBottomSheet and MeetingTimeDialog to include a close button for better user experience.
- Introduced MeetingTimeSuccessfulRegisteredBottomSheet and MeetingTimeSuccessfulRegisteredDialog for confirming meeting time registration.
- Refactored submission dialogs to improve layout and interaction consistency.

lib/core/routes/app_routes.dart

@@ -58,9 +58,17 @@ final GoRouter appRouter = GoRouter(
         path.startsWith('/forgot-password') ||
         location.startsWith('/forgot-password');
     final isPublic = isSplash || isLogin || isForgotFlow;
+
+    // If user has token and tries to access login page, redirect to home
+    if (hasToken && isLogin) {
+      return '/home';
+    }
+
+    // If user doesn't have token and tries to access protected routes, redirect to splash
     if (!hasToken && !isPublic) {
       return '/splash';
     }
+
     return null;
   },
 );