Minor UI tweak to Incarnate Create tab

[srmalloy]

On the incarnate powers Create tab, particularly with the Lore option, the number of choices can push the other categories off the screen. The existing interface opens a category to your choices when you click on it (i.e., clicking on 'Alpha' opens the submenu for all the types of Alpha boost); can this be modified so that clicking on an open category closes it (i.e., when Lore is open showing all the types of Lore pets, clicking on 'Lore' again closes the Lore category?) It's not a big issue, just an annoyance, so I don't think it should be given a high priority to change.