For scheduled telemed bookings dont end user in "waiting room"

[dmabram]

Scheduled telemed bookings should end more like scheduled in person bookings. "Your visit is confirmed..."

[GiladSchneider]

✅ telemed booking now drop user on ThankYou page

There is a separate issue with our thank you page, the "cancel" button does not work. I implemented a potential fix here: #274. Feel free to edit that pr or not use it at all!