Re-enable Kabyle translations

[d-loose]

We had to disable translations for the Kabyle language here since there's still an issue with three letter language codes in Flutter (see https://github.com/canonical/ubuntu-desktop-installer/pull/520 and https://github.com/flutter/flutter/issues/92818)).

I was able to make it work locally following https://github.com/flutter/flutter/pull/60632 though, so I'll open an issue and submit a PR for the flutter tools.