Switch to Interactive Video Embed

[Friss]

https://github.com/justintv/Twitch-API/blob/master/embed-video.md#interactive-embed

Would let us also hide the video embed when a streamer goes offline.

Maybe some other fun interactions as well.

[xF4t3]

Load denied by X-Frame-Options: https://www.twitch.tv/XXX/chat does not permit cross-origin framing.