Record meeting for immediate playback

[20k-ultra]

Meet recordings are only available after the recording has ended. Puppeteer has this deprecated project to record pages https://github.com/puppeteer/recorder. Perhaps we could use something like this so that someone can join the meet and go back and see the meeting record immediately.

[20k-ultra]

Meetbot could record and store to a file then offer another HTTP endpoint to stream this file to a browser.

[20k-ultra]

https://stackoverflow.com/questions/56327550/using-puppeteer-recorder-to-record-video-of-browser