Fix macOS title bar buttons not displaying properly.

Dylan Liu

2024-05-03 bdc57c6ec9b08f74ca65a06b8496fbaa3268c5fd

 src/widgets/widgetwindowagent.h

@@ -43,8 +43,8 @@
        void setHitTestVisible(const QWidget *w, bool visible = true);

    Q_SIGNALS:
        void titleBarChanged(const QWidget *w);
        void systemButtonChanged(SystemButton button, const QWidget *w);
        void titleBarChanged(QWidget *w);
        void systemButtonChanged(SystemButton button, QWidget *w);

    protected:
        WidgetWindowAgent(WidgetWindowAgentPrivate &d, QObject *parent = nullptr);