tweaks

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

lib/pages/search_panel/view.dart

@@ -32,6 +32,12 @@ abstract class CommonSearchPanelState<
   @override
   bool get wantKeepAlive => true;
 
+  @override
+  void dispose() {
+    controller.cancelListener();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     super.build(context);