Refactor completion of documents routing and UI components

- Removed unused mobile route for completion of documents.
- Updated app routes to reflect the removal of the mobile route.
- Enhanced the desktop and mobile pages for completion of documents with improved layout and added TabletDesktopAppbar.
- Introduced meeting time handling in TenderDetailActions, integrating new bottom sheet and dialog components for better user interaction.
- Added meeting time state management in TenderDetailViewModel.
- Cleaned up deprecated files related to meeting time selection.

lib/view_models/tender_detail_view_model.dart

@@ -28,6 +28,7 @@ class TenderDetailViewModel with ChangeNotifier {
   TenderApprovalsData? _tenderApprovalData;
   bool approvalStatus = false;
   String _status = '';
+  String _meetingTime = '';
 
   bool get isLoading => _isLoading;
   bool get isSubmitApprovalLoading => _isSubmitApprovalLoading;
@@ -36,6 +37,12 @@ class TenderDetailViewModel with ChangeNotifier {
   TenderData? get tenderDetail => _tenderDetail;
   TenderApprovalsData? get tenderApprovalData => _tenderApprovalData;
   String get status => _status;
+  String get meetingTime => _meetingTime;
+
+  set meetingTime(String value) {
+    _meetingTime = value;
+    notifyListeners();
+  }
 
   Future<void> getTenderDetail({required String id}) async {
     _isLoading = true;