[LyX/master] Update ja.po

[Koji Yokota]

commit 99d59490d76ba3065689022f2abf4c358b8c5e06
Author: Koji Yokota <yokota at lyx.org>
Date:   Thu Jun 27 06:42:26 2024 +0900

    Update ja.po

 po/ja.po | 4827 +++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 2422 insertions(+), 2405 deletions(-)