[LyX/master] Update it.po

[Enrico Forestieri]

commit c4a8a07a091ac86732afcaf70888a3e53768ab69
Author: Enrico Forestieri <forenr at lyx.org>
Date:   Thu Apr 23 23:08:36 2020 +0200

    Update it.po

 po/it.gmo |  Bin 586880 -> 593938 bytes
 po/it.po  | 7019 ++++++++++++++++++++++++++++++++-----------------------------
 2 files changed, 3657 insertions(+), 3362 deletions(-)