Sites Dashboard: Layout improvements

[taipeicoder]

Related to p1729282075333529-slack-C048CUFRGFQ

Proposed Changes

This PR proposed some quick layout improvements to the sites dashboard.

Before:

After:

Not in scope:

• Optimizing alignment when scrollbar is always being shown.
• Making the table full-width for wide resolutions.

Why are these changes being made?

Contributes to the overall polish of WordPress.com

Testing Instructions

• Head to /sites
• Ensure that alignments are updated as shown above.
• Also test different resolutions and alignments still make sense.

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)?

[matticbot]

This PR modifies the release build for the following Calypso Apps:

For info about this notification, see here: PCYsg-OT6-p2

• notifications

To test WordPress.com changes, run install-plugin.sh $pluginSlug update/sites-dashboard-layout on your sandbox.

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-ce3624aaa846b9940c38274f64dd5e3f117657a2

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-ce3624aaa846b9940c38274f64dd5e3f117657a2&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-ce3624aaa846b9940c38274f64dd5e3f117657a2&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.

[nuriapenya]

@taipeicoder @lucasmendes-design perhaps we should consider removing the max-width on the wrapper, to make sure everything extends within the flyout. Like it's done on the other usages of DataView component:

Editor:

A4A:

My suggestion for Plugins/manage:

Thoughts?

[taipeicoder]

Yes I would prefer to keep them consistent by removing the max-width, @lucasmendes-design WDYT?
cc: @arthur791004 as per this message p1729751192440159-slack-C06DN6QQVAQ