[LyX/master] Update fr.po, shortcuts untested Almost done, DRS stuff remains fuzzy until I decide to translate it or not

[jpc]

commit a1bcc25aa8c734322bbb02d73ef8df50b1c58f00
Author: jpc <jpc at lyx.org>
Date:   Tue Feb 23 19:10:32 2021 +0100

               Update fr.po, shortcuts untested
               Almost done, DRS stuff remains fuzzy until I decide to translate it or not

 po/fr.gmo |  Bin 594643 -> 614523 bytes
 po/fr.po  |  664 ++++++++++++++++++++++---------------------------------------
 2 files changed, 237 insertions(+), 427 deletions(-)