Please add "ja" to website language in boot.fpo

[Hajime Taira]

Hi website team,

Japanese translation of boot.fpo is ready.
https://www.transifex.net/projects/p/fedora-web/resource/boot-fedoraproje...

Would you please add ja (Japanese) to website language selection in
boot.fpo?

Thanks.

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Taira htaira-fdr(a)pantora.net
Fedora L10N Japanese Team Leader