Maintenance: Translations update from translations.zammad.org.

Special thanks to the amazing translation team. You rock! 💪

Co-authored-by: Dusan Vuckovic <dv@zammad.com>
Co-authored-by: M0ustach3 <pablobondialuttiau@gmail.com>
Co-authored-by: Weblate <noreply@weblate.org>
Translate-URL: https://translations.zammad.org/projects/documentations/user-documentation-latest/fr/
Translate-URL: https://translations.zammad.org/projects/documentations/user-documentation-latest/sr/
Translation: Documentation/User Documentation (latest)