[LyX/2.3.x] Remerge bg.po

[Pavel Sanda]

commit 7b40b26a45ce57e3bd43c2e595b2b01cf6765d04
Author: Pavel Sanda <sanda at lyx.org>
Date:   Wed Mar 31 14:35:26 2021 +0200

    Remerge bg.po

 po/bg.po | 1041 +++++++++++++++++++++++++++++++-------------------------------
 1 files changed, 522 insertions(+), 519 deletions(-)