Continues the migration to using fmt.
Notably, this allows safely converting a map within USBUtils over to
containing string view instances, rather than std::string instances, as
fmt safely handles the formatting of string views.
Since we don't have a way (AFAIK) to dynamically collect the list of
available art assets, we hardcode a list of gameids with available
artwork inside Dolphin. It's not great, but I don't think it's a
terrible solution either.
Art has to be manually uploaded to our Discord app configuration, and we
have a limit of ~150 assets, so most likely we'll limit ourselves to a
small set of popular games.
also did these things
fixed crash from joining user that isn't hosting via a direct connection
current game stat can now pass to override the current game in config
uses ip endpoint from dolphin.org
degasus