Setup guided flow redirects

[heavyweight]

Related to 7365-gh-Automattic/dotcom-forge

Proposed Changes

The guided flow has a few cases where we want to redirect the users to another flow.

1. If the user answers Migrating or importing an existing site we redirect to /setup/import-hosted-site
2. If the user answer Create newsletter we redirect to /setup/newsletter
3. If the user answers Sell something and Get a website built quickly we redirect to /start/do-it-for-me-store
4. If the user answers Get a website built quickly we redirect to /start/do-it-for-me

Why are these changes being made?

• The SegmentationSurvey didn't offer a way to bypass the navigation to the next page. To avoid navigation issues after redirection I extended it to have skipNextNavigation which is called with the question key and answers. This will easily allow us to customize how the navigation happens and avoid issues with history.

Testing Instructions

• Visit /start/guided
• Verify that selecting Migrating or importing an existing site will redirect to /setup/import-hosted-site
• Verify that selecting Create newsletter will redirect to /setup/newsletter
• Verify that by selecting Sell something and Get a website built quickly we redirect to /start/do-it-for-me-store
• Verify that by selecting Get a website built quickly we redirect to /start/do-it-for-me

Pre-merge Checklist

• [ ] Has the general commit checklist been followed? (PCYsg-hS-p2)
• [ ] 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)?
• [ ] For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-aUh-p2)?