(hotfix) modal: properly add "grag" class to the modal drag elem
(hotfix) modal: properly add "grag" class to the modal drag elem

Previously this wasn't happening on init so you wouldn't see the
grab cursor until you actually mouse downed and started to drag
and release the drag elem.  This cleans it up so the drag cursor
is show from the beginning.

redding/romo,redding/romo,redding/romo