Finished SplitView for Tablet devices

lib/view/pages/talk/chatList.dart

@@ -12,7 +12,8 @@ import '../../../notification/notifyUpdater.dart';
 import '../../../storage/base/settingsProvider.dart';
 import '../../../widget/confirmDialog.dart';
 import '../../../widget/loadingSpinner.dart';
-import 'chatTile.dart';
+import 'components/chatTile.dart';
+import 'components/splitViewPlaceholder.dart';
 import 'joinChat.dart';
 import 'searchChat.dart';
 
@@ -74,6 +75,8 @@ class _ChatListState extends State<ChatList> {
     ChatListProps? latestData;
 
     return SplitView.material(
+      placeholder: const SplitViewPlaceholder(),
+      breakpoint: 1000,
       child: Scaffold(
         appBar: AppBar(
           title: const Text("Talk"),