use AppProgressIndicator for plain loading spinners

lib/view/pages/share_intent/share_chat_picker.dart

@@ -19,6 +19,7 @@ import '../../../state/app/infrastructure/loadable_state/view/loadable_state_con
 import '../../../state/app/modules/chat_list/bloc/chat_list_bloc.dart';
 import '../../../state/app/modules/chat_list/bloc/chat_list_state.dart';
 import '../../../state/app/modules/settings/bloc/settings_cubit.dart';
+import '../../../widget/app_progress_indicator.dart';
 import '../../../widget/info_dialog.dart';
 import '../../../widget/placeholder_view.dart';
 import '../files/files_upload_dialog.dart';
@@ -275,6 +276,6 @@ Future<void> _showBlockingSpinner(BuildContext context) => showDialog<void>(
   barrierDismissible: false,
   builder: (_) => const PopScope(
     canPop: false,
-    child: Center(child: CircularProgressIndicator()),
+    child: Center(child: AppProgressIndicator.large()),
   ),
 );