replaced Tibetan with Esperanto (ESPERANTO MUST BE ADDED NOW)

1. Tibetan translation was abandoned 9 months ago (https://hosted.weblate.org/languages/bo/f-droid/#history), even the menu bar is untranslated.
2. The most important components for website are fully translated to Esperanto (https://hosted.weblate.org/languages/eo/f-droid/).
3. There are more applications in F-Droid-repository, which supports Esperanto than Tibetan (https://forum.f-droid.org/t/scandal-behavior-of-hans-christoph-steiner-again/4723/13).
4. Although Esperanto is not yet available as system language on Android, Tibetan is also not supported on most of devices. Users can change language using in-application selector or using external tools. It doesn't matter, becouse are not many applications in Tibetan language (see p.3).
5. This push reguest is about F-Droid website, there is no browser in repository, which supports Tibetan language, but at least Fennec and Firefox Klar supports Esperanto and provide in-application menu to change language.
6. Argument "we will not remove languages" is also invalid - Tibetan language will not be deleted, but moved to staging.f-droid.org; in similar way old applications are moved to f-droid archive repository.
7. Esperanto is world language, Tibetan is regional language with limited use.