Restore the fbkeyboard UI package. Add me and Alexey as maintainers.
Also do some cleanup.
This reverts commit a44c9a5c8b.
Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/9333>