fix, win privacy mode, broker process

Signed-off-by: dignow <linlong1265@gmail.com>

flutter/lib/desktop/pages/server_page.dart

@@ -40,6 +40,7 @@ class _DesktopServerPageState extends State<DesktopServerPage>
 
   @override
   void dispose() {
+    bind.cmClear();
     windowManager.removeListener(this);
     super.dispose();
   }