add WIP mac imp

Zhao Yuhang

2023-12-13 2a1e707b1cf530b00a5c0f3766466f10bd617619

 src/widgets/widgetwindowagent_win.cpp

@@ -34,7 +34,7 @@
    protected:
        bool observe(QEvent *event) override {
            switch (event->type()) {
                case QEvent::UpdateRequest: {
                case QEvent::UpdateLater: {
                    widget->update();
                    break;
                }