GF-59152: Do not call preventDefault in capture when we have a modal scrim.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>
Always allowDefault for moon.Popup.

Enyo-DCO-1.1-Signed-Off-By: Gray Norton (gray.norton@lge.com)
Merge pull request #1087 from enyojs/GF-59152-aarontam

GF-59152: Do not call preventDefault in capture when we have a modal scrim.