Better "minting" screen for RSVP

[julien51]

When doing RSVP, we are showing a modal over the event page like this:

Instead of showing the animation inside of a modal, we should show it inside the form box itself.

[julien51]

Feel free to test with https://staging-app.unlock-protocol.com/event/my-fun-party-1

[0xTxbi]

got it!