fix(recommend): 首屏不再兜出重试空态

lib/core/data/services/home_feed_controller.dart

@@ -33,6 +33,7 @@ class HomeFeedController extends ChangeNotifier {
   String? get cursor => _state(_channel).cursor;
   bool get hasMore => _state(_channel).hasMore;
   bool get loaded => _state(_channel).loaded;
+  bool get isLoading => _state(_channel).loading;
   bool get loadingMore => _state(_channel).loadingMore;
   bool get loadingFirstPage => !loaded && _state(_channel).loading;