New Booking detail

We've completely revised the booking detail page and made it common across Class bookings and Activity bookings. Much clearer for users, particularly for members puzzled by pricing before they log in.

While we were at it, we added:

• Sticky Book button -- always visible as you scroll
• Add to Calendar -- more obvious and includes deep link
• Favourite Classes -- you can now favourite classes

Check out the video to see this in action !