Oops, remove alt style when switching species

This wasn't causing big problems because we made resilient little
choices in a lot of little places… but it's confusing as a potential
state, and the Styles chooser wasn't selecting the "Default" option
after you switch—which is what tipped us off!

app/javascript/wardrobe-2020/WardrobePage/useOutfitState.js

@@ -276,6 +276,7 @@ const outfitStateReducer = (apolloClient) => (baseState, action) => {
         state.speciesId = action.speciesId;
         state.colorId = action.colorId;
         state.pose = action.pose;
+        state.altStyleId = null;
         state.appearanceId = null;
       });
     case "wearItem":