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/core/routes/app_routes.g.dart

@@ -14,7 +14,6 @@ List<RouteBase> get $appRoutes => [
   $finalCompletionOfDocumentsRouteData,
   $completionOfDocumentsRouteData,
   $likedTendersRouteData,
-  $completionOfDocumentsMobileRouteData,
   $tenderDetailRouteData,
   $forgotPasswordRouteData,
   $forgotPasswordOtpRouteData,
@@ -349,33 +348,6 @@ mixin _$LikedTendersRouteData on GoRouteData {
   void replace(BuildContext context) => context.replace(location);
 }
 
-RouteBase get $completionOfDocumentsMobileRouteData => GoRouteData.$route(
-  path: '/completion-of-documents',
-
-  factory: _$CompletionOfDocumentsMobileRouteData._fromState,
-);
-
-mixin _$CompletionOfDocumentsMobileRouteData on GoRouteData {
-  static CompletionOfDocumentsMobileRouteData _fromState(GoRouterState state) =>
-      const CompletionOfDocumentsMobileRouteData();
-
-  @override
-  String get location => GoRouteData.$location('/completion-of-documents');
-
-  @override
-  void go(BuildContext context) => context.go(location);
-
-  @override
-  Future<T?> push<T>(BuildContext context) => context.push<T>(location);
-
-  @override
-  void pushReplacement(BuildContext context) =>
-      context.pushReplacement(location);
-
-  @override
-  void replace(BuildContext context) => context.replace(location);
-}
-
 RouteBase get $tenderDetailRouteData => GoRouteData.$route(
   path: '/tender-detail',