[nc 15.0.0] accessibility in Menue not in transifex

[JSoko]

Steps to reproduce

1. Accessibility in the Menue should be translatable in transifex
2. https://www.transifex.com/nextcloud/nextcloud/translate/#de/$/151372581?q=text%3Aaccessibility
   

Expected behaviour

Should be shown in tranisfex, so that it can be translated

Server configuration

Nextcloud version: (see Nextcloud admin page)
15.0.0
Updated from an older Nextcloud/ownCloud or fresh install:
updated

[JSoko]

Dupe of
#11803