[TODO] Create a "Watch YouTube and chat Together" component

[Sing-Li]

Backport and adapt the RC4Conferences "mainstage component" trivially to create a "Watch YouTube and chat together" component.

This component allows users to watch something on youtube together while chatting about it together in the embedded chat with one another.

Key point: this component will make use of the auxiliary data available from the auth component on two levels:

1. directly -- via the username and email info that is required for the embedded chat
2. indirectly -- through the scaled superprofile -- the role-and-permission information that is necessary to control the "logged in" vs "logged out" top-nav behaviors

[Palanikannan1437]

I'd love to work on this awesome feature once I'm done with implementing the requested changes in #183!

[Sing-Li]

Amazing progress you're making on #183 @Palanikannan1437 ! You're on 👍

They are quite related as it showcases the usage of the "auth" component(s) and how they typically integrates into the customized system.