AFCMS

> I tried and I failed. Did you fail to design the icon?

I have added a value to display_length. The goal is to make it appear as supported for both PC and mobile devices, so I picked 360 which is the value...

I consider this PR as finished, IMO the last TODO item isn't really important. The last thing to check is the contact email, but don't know what to put here...

Updated the descriptions to mention the fact that Minetest is a game platform. English and French should be good, for other translations I just used DeepL and can't really validate...

Updated the contact email to c55