[LyX/2.3.x] Update it.po

[Enrico Forestieri]

commit 73c3654304dc05819ac91388ee390211551767b9
Author: Enrico Forestieri <forenr at lyx.org>
Date:   Sat Nov 30 10:48:19 2019 +0100

    Update it.po

 po/it.gmo  |  Bin 536963 -> 537527 bytes
 po/it.po   | 1255 +++++++++++++++++++++++++++---------------------------------
 status.23x |    2 +-
 3 files changed, 567 insertions(+), 690 deletions(-)