Fix NSWindowProxy::setSystemButtonVisible not taking effect (#175)

李威 wei.li

2025-04-21 469c975a708ed86c834b59ed751a4548c693a7b9

 examples/qml/QWKButton.qml

@@ -20,6 +20,7 @@
            mipmap: true
            width: 12
            height: 12
            fillMode: Image.PreserveAspectFit
        }
    }
    background: Rectangle {