German translation
This makes some necessary changes for i18n and adds a german l10n for the GUI.
Der Repository Speicher wird am 20.04.2026 von 09:00 bis 09.30 Uhr erweitert. Dazu muss GitLab einmal rekonfiguriert werden. --en-- The repository storage is being expanded on the 20th of April from 09:00 to 09:30 o'clock. To do this, GitLab needs to be reconfigured once.
This makes some necessary changes for i18n and adds a german l10n for the GUI.