Internationalize Admin users new

What does this MR do?

Internationalizes Admin users new.

Rework of !31903 (closed) done by @suzu-1990

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [n/a] Documentation (if required)
• Code review guidelines
• [n/a] Merge request performance guidelines
• Style guides
• [n/a] Database guides
• Separation of EE specific content