fix player UUIDs in RegistrationDomainDefaults.plist
fix player UUIDs in RegistrationDomainDefaults.plist

the previous commit added a new player "Fuego (extra strong)" and
changed the name of the already existing player "Fuego" to
"Fuego (strong)". during these changes an error crept in which caused
the new player to get the UUID of the already existing player. here
we revert this error.

herzbube/littlego,herzbube/littlego,herzbube/littlego,herzbube/littlego,herzbube/littlego