Reader: Move comment input in reader-full-post view above related posts

[holdercp]

Fixes #94800

Proposed Changes

• Move the comment input in the Reader full post view above related posts

Before	After

Why are these changes being made?

• Improves the UX by grouping related posts together and moving the comment input closer to the post content.

Testing Instructions

1. Go to /read and click on any post
2. Scroll to bottom of post

Expected: Comment input should now be directly under the post actions and if related post sections are displayed, they should now be under the comments section.

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)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-a459d974c1e1f42ce5ba6d104c77dc67827b6204

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-a459d974c1e1f42ce5ba6d104c77dc67827b6204&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-a459d974c1e1f42ce5ba6d104c77dc67827b6204&env=a8c-for-agencies

[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.

[holdercp]

@davemart-in Just wanted to make sure you're aware that the two related posts sections are now stacked. I think it's still a better UI/UX than what was there before but wanted to call it out.

[davemart-in]

This looks good. I don't mind the stacked recommendations since the first one is from your blog and the second on is from WordPress.com in general.

This looks ready to ship.