In v1, we had a quick and easy way to leave creation forms - an escape button (and key handler) in the top right corner.
This was especially helpful in cases where the form was long enough that the 'Cancel' button was off-screen.
This ports over that component into v2 and hooks up into our two existing forms:
<img width="977" alt="Screen Shot 2022-02-09 at 5 48 03 PM" src="https://user-images.githubusercontent.com/88213859/153321503-af957f2b-d674-4ebf-9ac5-97939cb9153f.png">
In addition, this adds test cases + a storybook story for it.