Update dependencies and enhance tender approval status handling

- Updated `pubspec.lock` to reflect new versions for several packages, including `async`, `fake_async`, `leak_tracker`, and `vm_service`.
- Modified `TenderApprovalStatus` enum to include a new status `approved`.
- Updated routing for `YourTendersRouteData` to accept a status parameter and pass it to the `YourTendersScreen`.
- Adjusted API calls and view models to utilize the new status handling, ensuring proper filtering and display of tender data based on approval status.
- Enhanced filter dialog to support new status options and improved user feedback in the UI for submitted and approved tenders.

lib/core/constants/tender_approval_status.dart

@@ -3,7 +3,8 @@ enum TenderApprovalStatus {
   submitted,
   rejected,
   unsubmitted,
-  unrejected;
+  unrejected,
+  approved;
 
   /// Convert enum to string value for API
   String get value {
@@ -16,6 +17,8 @@ enum TenderApprovalStatus {
         return 'unsubmitted';
       case TenderApprovalStatus.unrejected:
         return 'unrejected';
+      case TenderApprovalStatus.approved:
+        return 'approved';
     }
   }
 }