[LyX/master] bg.po: update from Veselin

[Juergen Spitzmueller]

commit 898007fecdb0d9d4119b9548fa62f2ec783f51e8
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Fri Apr 1 09:27:55 2022 +0200

    bg.po: update from Veselin

 po/bg.po | 9578 +++++++++++++++++++++++++++++---------------------------------
 1 files changed, 4519 insertions(+), 5059 deletions(-)