There where two issues with the current implementation:
- There was a possible duplication between looking up the language name in key "locale" and in key "i18n.language.name"
- The "default" option was not being picked up, as the fallback always returned the default locale's translation, "English"
With this implementation there is only a single place to put the language name: i18n.language.name. I think this place is easier to find and understand for Crowdin translators than a "locale" key hidden in general.yml
If the translation is not found we display the language key, instead of English, which makes more sense to me too 😌
Solution based on recent comments[1] on a related I18n issue
[1] https://github.com/svenfuchs/i18n/issues/365#issuecomment-419263847