Starting from v1.8.0 you can choose the language of your Chat/Discord messages (eg restart warnings).
This option can be found at Settings > Global > Language.
If your language is not available, create a custom.json file in your locale folder based on the English file (en.json). Then go to the settings and select the "Custom" language option.
Note: To prevent people from getting stuck in their
git pullupdates, we are "protecting" the default language files from being modified.
Note2: If your language is not available in the list, feel free to do a Pull Request.