AWC: fix window attribute handler

SineStriker

2025-02-11 e9f790d3533ebaee1f782e91b6e13b2c6375c86a

 examples/mainwindow/mainwindow.h

@@ -30,8 +30,6 @@
protected:
    bool event(QEvent *event) override;

    void closeEvent(QCloseEvent *event) override;

private:
    void installWindowAgent();
    void loadStyleSheet(Theme theme);