[stable24] headings submenu cut off on narrow screens

[mejo-]

Describe the bug
The headings submenu is cut off on narrow screens, the translateX(50%) moves it out of the viewport:

[mejo-]

This sounds related: Akryum/floating-vue#651 (the Actions component uses floating-vue). floating-vue migrated from popperjs to floating-ui and the new nextcloud-vue uses this updated floating-vue. That's probably why the bug no longer exists on master.

[mejo-]

This has been fixed with #2917.