quickwindowagent: Remove const for HitTestVisible API.

Dylan Liu

2024-05-30 ef7c04cd9ac06b64c516db47bda6f4d9c12db3b9

 examples/mainwindow/light-style.qss

@@ -144,6 +144,10 @@
    background-color: #F3F3F3;
}

MainWindow[custom-style=true] {
    background-color: transparent;
}

QWidget#clock-widget {
    font-size: 75px;
    color: #333333;