option to allow translation services (e.g. Google Translate, Deepl, ...) for key translations
If you have a lot of translation keys it could take some time to translate every key manually.
It would save time, if an editor has the possibility to translate a key via the Deepl API, Google Translate API or other services, just by pressing a button.
Maybe translate the complete language file in one go or each key individually one by one, depending if a localization exists or if just some keys needs to be translated. Then the editor only needs to proof read and maybe make minor adjustments.
I saw this feature in this extension: https://extensions.typo3.org/extension/datamints_locallang_builder