[Feature request] Add support for easy language switching

[SoulInfernoDE]

Hi, i have made a language pack for german. It would be very nice if there is any option to include/download the language pack and overwrite existing files with it from within either the launcher or from the snap itself. If you have any idea how this could be done the smart way i could give you the link to the language pack and the references.

Way to manually download the language pack via terminal: wget --no-check-certificate 'https://raw.githubusercontent.com/mzramna/easy-google-drive-downloader/master/download_google_drive_file.sh' -O download_google_drive_file.sh && chmod +x download_google_drive_file.sh && ./download_google_drive_file.sh '10gE3vUSUcjFWC0gxsnUbbLlZODffdydE'

Also i don't know if it's allowed to add the uncut patches from Nyerguds but this would fit the game in german language nearly the same as in english and has a very nice play feeling.