Make maps random for Crystal Conflict, instead of hourly.

[NekoMataMata]

I think the map rotation is good for ranked with how certain jobs just function better on some maps vs others, so having that level of planning would is cool. I do think having it be random for casual would be better overall though.

Came here to say this.

There are some maps that are absolutely unkind to certain jobs, like Volcanic Heart being brutal to casters.