ENHYO-698: ContextualPopup: Spotlight Does Not Spot Parent upon 'Select Dismiss On'

Issue.

When using Dismiss on Select, the popup activator was not re-spotted because `hide` was used instead of `closePopup`

Fix.

Switch the method being used to close popup.

Enyo-DCO-1.1-Signed-off-by: Derek Anderson <derek.anderson@lge.com>
Little nervous about using a private method in the sample. Curious if the UX should be that the activator is *always* spotted when the popup is hidden. Right now, it's spotted when the close it tapped or when handling onSpotlightContainerLeave which would be triggered by 5-way out of the popup or an explicit `spot()` on another control.