Fix top border & misc tweaks (#167)

Yuhang Zhao

2025-03-04 1d08c8b1144a62887a2b73903eef4129dc9be207

 src/widgets/widgetwindowagent.cpp

@@ -61,7 +61,7 @@
        w->setAttribute(Qt::WA_DontCreateNativeAncestors);
        // Make sure the native window handle is actually created before we apply
        // various hooks.
        w->setAttribute(Qt::WA_NativeWindow); // ### FIXME: Remove
        //w->setAttribute(Qt::WA_NativeWindow); // ### FIXME: Check

        d->setup(w, new WidgetItemDelegate());
        d->hostWidget = w;