[LyX/2.3.x] Update it.po

[Enrico Forestieri]

commit e7e32984cf8af47d4207314424b44d9cd607dc28
Author: Enrico Forestieri <forenr at lyx.org>
Date:   Sun May 24 15:18:11 2020 +0200

    Update it.po

 po/it.gmo  |  Bin 538017 -> 538910 bytes
 po/it.po   | 1266 +++++++++++++++++++++++++++---------------------------------
 status.23x |    4 +-
 3 files changed, 573 insertions(+), 697 deletions(-)