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] ruby-i18n/i18n#365 (comment)

Add i18n.yml to i18n task's available translation files

`I18n.available_locales=` does a little magic[1] and was causing some flakieness along the way, as the `:wl` locale persisted in future specs

Thanks for the heads up @javierm 👌

[1] https://www.rubydoc.info/github/svenfuchs/i18n/I18n%2FConfig:available_locales=