#7547597 Pricing page rework: Fix text in licensing prompt dialog to make it clickable link

Proposed Changes

• This PR updates the instructions in licensing prompt dialog on Jetpack connection page when the user has a detached license.

Testing Instructions

It’s assumed that you are proxied.

• Do any one of these
  • Click on Calypso Live link below and wait for the redirect to complete
  • or boot up this PR
    • Run git fetch && git checkout update/jp-pricing-rework/jetpack-connect-text
    • Run yarn start
    • Goto http://calypso.localhost:3000
• Goto https://cloud.jetpack.com/pricing and purchase a product e.g. Backup but do not activate it for any site.
• Create a JN site
• While connecting Jetpack, pause on the plans page i.e. https://wordpress.com/jetpack/connect/plans/:site
• Copy the URL and open it in another tab after replacing https://wordpress.com with http://calypso.localhost:3000 or Calypso Live URL above.
• Confirm that you see the license prompt dialog.
• Confirm that you see the instructions text changed to Or in https://wordpress.com/me/purchases
• Click on the link
• Confirm that it opens WPCOM purchases page in a new tab

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)?

Completes: 0-as-1203036427386318/f

BEFORE	AFTER

• To see the specific tasks where the Asana app for GitHub is being used, see below:
  • https://app.asana.com/0/0/1203036427386318