Translate /config/locales/en.yml in de_DE (#2752)

translation completed for the source file '/config/locales/en.yml'
on the 'de_DE' language.

Co-authored-by: transifex-integration[bot] <43880903+transifex-integration[bot]@users.noreply.github.com>

config/locales/de_DE.yml

@@ -509,6 +509,7 @@ de_DE:
       visibility: Sichtbarkeit
       formats: Formate
     visibility:
+      inaccessible: Nicht verfügbar
       public: Öffentlich
       unlisted: Nicht gelistet
     format: