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Update sandman_de.ts (#5536)

* Update sandman_de.ts

- Added new translations.
- Removed "vanished" messages.
- Minor corrections.

* Update TRANSLATING.md
M
Michael committed
9731363f726fd871b38648e040e75142856478e7
Parent: 556a854
Committed by GitHub <noreply@github.com> on 8/17/2026, 6:56:36 PM