add more const

Yuhang Zhao

2023-12-06 f041cd599f2ba58906958f6886b9cd25e180d0af

 src/widgets/widgetwindowagent_p.h

@@ -15,7 +15,7 @@
        void init();

        // Host
        QWidget *host{};
        QWidget *hostWidget{};
    };

}