Fix mistakes of quick module

SineStriker

2023-12-28 39ba3049f01b30c9a99ad8bb8cd94e117d1c3c65

 examples/mainwindow/mainwindow.h

@@ -28,13 +28,11 @@

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

    Theme currentTheme{};

    QWK::WidgetWindowAgent *windowAgent;
    QWK::StyleAgent *styleAgent;
};

#endif // MAINWINDOW_H