qqc2-desktop-style fix for some broken menus

[Akseli Lahtinen]

Hi!

I just now pushed a fix for qqc2-desktop-style since some Menu items, such as the
emote picker in Nheko, would break due to the previous changes.

https://invent.kde.org/frameworks/qqc2-desktop-style/-/commit/6d79bb7309352c4f77980ed1c68c984c074745f1

It may be good idea to backport this fix in case you have users reporting about broken menus.

Please also see the related bug report https://bugs.kde.org/show_bug.cgi?id=516151

Best regards,
- Akseli