Tasks (in this order):

Update from weblate

• Go to Weblate and check the translation changes by translators there. See section Attention below.
• Merge all translation changes from Weblate into a branch, and create a PR.
• Check the output, and fix any problems you find.
• Tell me when it's ready to merge.

Translate new strings

• Start with the branch from Weblate above.
• Extract new strings
• Run AI translators
• Make a PR
• Check the output, and fix any problems you find. See section Attention below.
• Tell me when it's ready to merge.

Test

(with both Weblate changes and AI translator changes)

• Test it, in all languages.
• Fix any problems you find. Repeat previous step until there are no more issues.

Attention

Pay particular attention to

• Any placeholders {} and plural forms, that the translator doesn't mess this up.
• Folder properties (select folder, click [...], check the message counts)
• Settings (all panels), as they contain lots of strings.