opt: emote panel

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

lib/pages/live_emote/view.dart

@@ -131,18 +131,17 @@ class _LiveEmotePanelState extends State<LiveEmotePanel>
                 SizedBox(height: MediaQuery.of(context).padding.bottom),
               ],
             )
-          : _errorWidget,
-      Error() => _errorWidget,
+          : _errorWidget(),
+      Error() => _errorWidget(loadingState.errMsg),
       LoadingState() => throw UnimplementedError(),
     };
   }
 
-  Widget get _errorWidget => Center(
-        child: IconButton(
-          onPressed: () {
-            _emotePanelController.onReload();
-          },
+  Widget _errorWidget([String? errMsg]) => Center(
+        child: TextButton.icon(
+          onPressed: _emotePanelController.onReload,
           icon: Icon(Icons.refresh),
+          label: Text(errMsg ?? '没有数据'),
         ),
       );
 }