With anchorRef the frame renders visibility:hidden until useSWHeaderOverlay
places it, and the focus effect ran in that same commit, so focus() on the
hidden element was ignored. Focus now runs once the frame is placed; the
previous element is still captured first, so Escape / close return focus.
Align the SWPopup autoFocus default doc (true with anchorRef) and catalog.
(cherry picked from commit 65bc0dbd5df059ead06f10a3f95f2bd2734fbf2f)
shkim4
b434f272e2