opt scroll physics

Signed-off-by: dom <githubaccount56556@proton.me>

lib/pages/search_panel/user/view.dart

@@ -112,9 +112,8 @@ class _SearchUserPanelState
   }
 
   @override
-  Widget get buildLoading => SliverGrid.builder(
+  Widget get buildLoading => SliverGrid(
     gridDelegate: gridDelegate,
-    itemBuilder: (context, index) => const MsgFeedTopSkeleton(),
-    itemCount: 10,
+    delegate: sysFeedDelegate,
   );
 }