improve sysmenu behavior

Zhao Yuhang

2024-05-07 357532958f2e806c69c96f018333a45e65e35201

 src/widgets/widgetwindowagent.cpp

@@ -56,7 +56,7 @@
        }

        w->setAttribute(Qt::WA_DontCreateNativeAncestors);
        w->setAttribute(Qt::WA_NativeWindow);
        w->setAttribute(Qt::WA_NativeWindow); // Create new window id

        d->setup(w, new WidgetItemDelegate());
        d->hostWidget = w;