There isn't Japanese language option in Language Switcher

Hello,

I translated "Funkwhale.audio" with 100%.Also,translating "Funkwhale For Android","Funkwhale's server front-end" and "Contribute" in progress.I took care of an incorrect translation of them and making mistakes.But I would like to check my translation correctly and see how to reflect my translation especially on "Funkwhale.audio" and "Contribute" sites.Please add Japanese language option to Language Switcher in both sites.

Thank you.

DignifiedSilence