Pull non-website PO files from Weblate

@emmapeel told us our translations were moved from Transifex to Weblate and are now pushed to the tails-misc branch. She does not know how to handle the tails-misc_release branch with Weblate. Let's figure this out together :)

Context for the (now broken) previous status quo: #16774 (closed), !113 (merged)