some changes in tenders

lib/views/tenders/pages/m_tenders_page.dart

@@ -8,9 +8,54 @@ import '../../../core/theme/colors.dart';
 import '../../shared/tender_app_bar.dart';
 import '../widgets/main_tenders_slider.dart';
 
-class MobileTendersPage extends StatelessWidget {
+class MobileTendersPage extends StatefulWidget {
   const MobileTendersPage({super.key});
 
+  @override
+  State<MobileTendersPage> createState() => _MobileTendersPageState();
+}
+
+class _MobileTendersPageState extends State<MobileTendersPage> {
+  late final TendersViewModel viewModel;
+  @override
+  void initState() {
+    super.initState();
+    viewModel = context.read<TendersViewModel>();
+    viewModel.addListener(_viewModelListener);
+  }
+
+  void _viewModelListener() {
+    if (viewModel.feedbackErrorMessage != null) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          backgroundColor: AppColors.error,
+          content: Text(viewModel.feedbackErrorMessage!),
+        ),
+      );
+    }
+    // if (viewModel.errorMessage != null) {
+    //   ScaffoldMessenger.of(context).showSnackBar(
+    //     SnackBar(
+    //       content: Text(viewModel.errorMessage!),
+    //     ),
+    //   );
+    // }
+    if (viewModel.tenderApprovalErrorMessage != null) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          backgroundColor: AppColors.error,
+          content: Text(viewModel.tenderApprovalErrorMessage!),
+        ),
+      );
+    }
+  }
+
+  @override
+  void dispose() {
+    viewModel.removeListener(_viewModelListener);
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(