GF Signup:Fix preloading conditions

[ddc22]

Related

• https://github.com/Automattic/growth-foundations/issues/159

Proposed Changes

• Fix preloading conditions for the relevant plans modal experiment.
• The conditions for preloading the experiment were incorrect. All experiments were pre loaded only when there was a free subdomain. But two of these experiments actually are activated when there is a paid domain. So the code was changed to fix this conditional errors.

Testing Instructions

• Run a few confidence checks from GF Signup : Experiment Allow Paid Domain redirect For all Domains #80647

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-ajp-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-78668

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-78668&env=jetpack

[matticbot]

This PR does not affect the size of JS and CSS bundles shipped to the user's browser.

Generated by performance advisor bot at iscalypsofastyet.com.

[aaronyan]

LGTM! I've tested both flows and was able to assign myself to treatment and get the modal for a paid domain + free plan.