update notification tab data when clicking on navigation bars

lib/core/routes/app_shell/app_shell_screen.dart

@@ -8,6 +8,8 @@ import 'package:tm_app/view_models/home_view_model.dart';
 import 'package:tm_app/view_models/tenders_view_model.dart';
 import 'package:tm_app/views/shared/responsive_builder.dart';
 
+import '../../../view_models/notification_view_model.dart';
+
 class AppShellScreen extends StatelessWidget {
   const AppShellScreen({required this.navigationShell, super.key});
 
@@ -32,6 +34,9 @@ class AppShellScreen extends StatelessWidget {
       if (index == 1) {
         context.read<TendersViewModel>().init(context);
       }
+      if (index == 3) {
+        context.read<NotificationViewModel>().init();
+      }
     });
   }