Fix window overflow

Sine Striker

2023-12-23 fee0c64a8f8d6237f94457b608cc09614514f9b5

 examples/mainwindow/mainwindow.h

@@ -28,6 +28,7 @@

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

    Theme currentTheme{};