#7482380 Add VideoPress / Videomaker Onboarding Flow

Proposed Changes

• Adds a new signup flow at /start/videopress for onboarding a user to a new premium site with Videomaker.

Testing Instructions

• Visit /start/videopress, and create a new user and site.
• You should be taken to the checkout page with the premium plan in the cart.
• After payment, you should be redirected to the site editor with Videomaker enabled.

Pre-merge Checklist

• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the “[Status] String Freeze” label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?

PT: pxWta-1pv-p2