Use our native menu bar on macOS

The Qt Quick Controls native menu bar introduced in Qt 6.8 is broken.

Author: adazem009

src/ui/internal/uiengine.cpp

@@ -78,7 +78,8 @@ bool UiEngine::useNativeMenuBar() const
     return true;
 #else
     // Since Qt 6.8, Qt Quick Controls menu bar is native
-    return false;
+    // However, it's currently broken, so use our native menu bar
+    return /*false*/ true;
 #endif
 #elif defined(Q_OS_LINUX)
     const QDBusConnection connection = QDBusConnection::sessionBus();