The recovery envelope no longer lands in /root/ — code was cleaned up
earlier this cycle to keep the keyfile and its envelope exclusively at
/usr/local/share/proxmenux/. The glossary entries for "Recovery envelope"
(EN) / "Sobre de recuperación" (ES) still described the /root/ mirror
as an "offsite backup" / "respaldo local", which is now inaccurate.
Removes the trailing sentence from both entries.