Revert "Hide the homepage overlay."
Revert "Hide the homepage overlay."

This reverts commit 6d13b4cc22599e52b7c108b360b30a5d7957e083.

This change was originally made for the lack of a proper
background image -- which made showing the overlay on homepage
rather useless. Now that the background image has been redone
and is overlay-friendly, we can revert this change.

kamalx/edx-platform,kamalx/edx-platform,kamalx/edx-platform,kamalx/edx-platform,kamalx/edx-platform