fix possible QWKQuick crash

Zhao Yuhang

2025-05-07 576654b6173e97425411010b2f40b3e9519b85b8

 examples/shared/widgetframe/windowbar_p.h

@@ -29,8 +29,9 @@
            IconButton,
            MenuWidget,
            TitleLabel,
            MinimumButton,
            MaximumButton,
            PinButton,
            MinimizeButton,
            MaximizeButton,
            CloseButton,
        };