delete the face config ui when face gets switched
don't let face config uis linger there when the user switches the face. also, not all face have a config ui. Don't load anything at all if not provided by the face.
Edited by David Redondo
don't let face config uis linger there when the user switches the face. also, not all face have a config ui. Don't load anything at all if not provided by the face.