changed messages to toast

lib/views/tenders/pages/d_tenders_page.dart

@@ -7,6 +7,7 @@ import 'package:tm_app/views/shared/desktop_navigation_widget.dart';
 import 'package:tm_app/views/tenders/widgets/main_tenders_slider.dart';
 
 import '../../../core/constants/common_strings.dart';
+import '../../../core/utils/app_toast.dart';
 
 class DesktopTendersPage extends StatefulWidget {
   const DesktopTendersPage({super.key});
@@ -26,20 +27,10 @@ class _DesktopTendersPageState extends State<DesktopTendersPage> {
 
   void _viewModelListener() {
     if (viewModel.feedbackErrorMessage != null) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          backgroundColor: AppColors.error,
-          content: Text(viewModel.feedbackErrorMessage!),
-        ),
-      );
+      AppToast.error(context, viewModel.feedbackErrorMessage!);
     }
     if (viewModel.tenderApprovalErrorMessage != null) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          backgroundColor: AppColors.error,
-          content: Text(viewModel.tenderApprovalErrorMessage!),
-        ),
-      );
+      AppToast.error(context, viewModel.tenderApprovalErrorMessage!);
     }
   }