Hello!
I am so happy that you are interested in translating this game. It is a fun passion project for me as well, and France is one of my favorite countries I've been to, so having a version of Light Side in French would be a dream.
This is a free game, and you are free to share it and alter it as you would like. I just ask that you credit me, and never charge anything for any version of Light Side. I want it to be available to people from all across the Galaxy!
If you have any questions or if I can help in any way, don't hesitate to reach out to me here or via email. ian@maudlingames.com
May the Force Be With You!