Fix KeyBindingStore not getting correct defaults for variants.
Fix KeyBindingStore not getting correct defaults for variants.

DrabWeb/osu,EVAST9919/osu,UselessToucan/osu,smoogipoo/osu,smoogipoo/osu,DrabWeb/osu,ZLima12/osu,EVAST9919/osu,NeoAdonis/osu,NeoAdonis/osu,ppy/osu,naoey/osu,naoey/osu,Frontear/osuKyzer,ppy/osu,peppy/osu,ppy/osu,Nabile-Rahmani/osu,johnneijzen/osu,smoogipoo/osu,2yangk23/osu,DrabWeb/osu,naoey/osu,smoogipooo/osu,johnneijzen/osu,ZLima12/osu,UselessToucan/osu,UselessToucan/osu,Damnae/osu,Drezi126/osu,peppy/osu,peppy/osu-new,NeoAdonis/osu,peppy/osu,2yangk23/osu