check web and tablet for logic

lib/views/tenders/pages/d_tenders_page.dart

@@ -5,9 +5,47 @@ import 'package:tm_app/core/utils/size_config.dart';
 import 'package:tm_app/view_models/tenders_view_model.dart';
 import 'package:tm_app/views/tenders/widgets/main_tenders_slider.dart';
 
-class DesktopTendersPage extends StatelessWidget {
+class DesktopTendersPage extends StatefulWidget {
   const DesktopTendersPage({super.key});
 
+  @override
+  State<DesktopTendersPage> createState() => _DesktopTendersPageState();
+}
+
+class _DesktopTendersPageState extends State<DesktopTendersPage> {
+  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.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 SafeArea(