undebate is live rework

[ddfridley]

The Undebate is Live page currently looks like this:

But this doesn't allow the administrator to actually see the undebate.

The Recorder page looks like this, and shows an actual undebate.

We need a new design or the undebate is live page.

• [ ] consistent with the current design look and feel
• [ ] shows the undebate if one has been created, or partially created.
• [ ] Restart
• [ ] Open in new tab
• [ ] Copy link
• [ ] Download QR code
• [ ] Status message - some way to indicate that candidate recordings are complete, or xx of yy are complete, or not started yet.
• [ ]