Comment Detail: Fix spacing for views in content cell

[dvdchr]

Refs #17087

As titled, this fixes the spacing for the cell to make it look good in various scenarios. Here are some screenshots:

Description	Screenshot
All components are displayed. Full power mode!
No reaction bar
No moderation bar
Read only

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⚠️ NOTE: Auto-merge is enabled. ⚠️

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To Test

Note: It's easiest for me to modify the values of isReactionEnabled and isModerationEnabled rather than having to switch sites or accounts, to be honest. 😅

• Enable newCommentDetail feature flag.
• Go to My Site > Comments.
• Verify that the content cell is displayed properly when viewed:
  • With moderation capability and ENABLED reactions.
  • With moderation capability and DISABLED reactions. (I'm not sure if this is possible in a real use case, though...)
  • With NO moderation capability and ENABLED reactions.
  • With NO moderation capability and DISABLED reactions.

Regression Notes

1. Potential unintended areas of impact
   n/a. Feature is unreleased.

2. What I did to test those areas of impact (or what existing automated tests I relied on)
   n/a. Feature is unreleased.

3. What automated tests I added (or what prevented me from doing so)
   n/a. Feature is unreleased.

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding unit tests for my changes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile]

You can trigger an installable build for these changes by visiting CircleCI here.

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[peril-wordpress-mobile]

	Warnings
⚠️	This PR is assigned to a milestone which is closing in less than 4 days Please, make sure to get it merged by then or assign it to a later expiring milestone

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[ScoutHarris]

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