A4A: Fix header alignment with the DataViews table

[tiagonoronha]

Related to https://github.com/Automattic/automattic-for-agencies-dev/issues/1081

Proposed Changes

• Fixes the header alignment across different breakpoints.

Before	After

Testing Instructions

• Open the live link
• Go to the Sites list
• Confirm that the header now aligns with the rest of the UI elements.
• Resize the browser (or use developer tools) to check other breakpoints.

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:build-120142

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-120142&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-120142&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.

[andrii-lysenko]

Hmm, it's definitely now aligned within Sites tab, but the header jumps when navigating between tabs. Eg from Overview to Sites.

I'm not quite sure on how better handle this. @jeffgolenski maybe you have a idea?

[tiagonoronha]

@andrii-lysenko Thanks for the feedback. I noticed the issue was actually with the padding on the table and not the header.

If you test again it should basically behave the same as the Referrals view.

[andrii-lysenko]

Thanks for addressing that! LGTM!