UX: Add text + informational to lobby to indicate that you are not in the room yet

[misslivirose]

Challenge: Feedback from users is that people do not always realize they are in the lobby instead of the room itself when they first join in to use Hubs.

Suggestion: When the user is not the owner of a room, use the screen real estate for a message that explains to the user they are in the lobby. I'm not attached to this specific copy but I think that we need to explicitly indicate to the user that there is another layer of experience.

[gfodor]

#1292

[gfodor]

Live now!