BUR #62818 has been approved by @evazion.
mass update favgroup:58799 -> first_class_mage_uniform
I was about to tag it all but since there's a lot, let's put it to a vote.
I did not include Methode's winter clothes since I am unsure if that's her variant of the first class mage uniform.
I was also debating whether or not to call the tag 1st_class_mage_uniform or if a qualifier was necessary for Frieren.
Those can be additional BURs if this passes and people think it's worth aliasing this one to a qualified name.