Clarify Bengali localization contribution path and inactive Transifex link

Context

I would like to contribute Bengali (Bangla, bn) localization and proofreading for the Navigation SDK for Android.

The current contribution guide directs translators to:

https://www.transifex.com/mapbox/mapbox-navigation-sdk-for-android/

However, that URL currently returns a 404 page. I also could not find values-bn resources in the current main branch.

At the same time, the current Navigation SDK localization documentation lists Bengali as supported for user-interface elements:

https://docs.mapbox.com/android/navigation/guides/localization/

Questions

1. Is Bengali UI localization currently distributed from a source outside this repository?
2. What is the current translation platform or project URL for contributing Bengali translations?
3. If Bengali translations need to be restored or updated, would the maintainers welcome a Bengali translation/proofreading contribution?
4. Should new translations target all resources listed in .tx/config, or is there a newer localization workflow?

I am a native Bengali speaker from Bangladesh and would be happy to translate and review the navigation terminology carefully once the supported contribution workflow is confirmed.

Inizia dalla guida alla contribuzione e da .tx/config, quindi confrontale con la guida alla localizzazione collegata nel report. Conferma con i maintainer il workflow supportato per Bengali e l’URL di traduzione; il lavoro è terminato quando la guida e il link descrivono un percorso attuale concordato e lo stato di Bengali.