Full translation into Japanese

[Floppy]

Japanese is the 5th most commonly used language on the web according to https://www.statista.com/statistics/262946/most-common-languages-on-the-internet/. If you'd like to volunteer, sign up on https://translation.io/, post your username, and I'll get you set up.

I'm assuming this can be done with left-to-right text, and that the current layout will work. If that's not true, someone shout!