th03/mainl: Balance the two lines of Kotohime's and Chiruyi's title
th02/maine: Clarify that 高附日向 is the name of the All Clear picture artist

This wasn't obvious to me and some other people I asked. I realize that this is
the only logical explanation in the context of a staff roll, but ZUN is known
to put random text at random places...
Update xJeePx's English translations

Just a few minor things before we're shipping.