Proposed Changes

• Center the Generating content for your site message on mobile:

Before	After

• Also, vertically align the spinner with the text on desktop, you can see on the first image that it's a little bit off:

Before	After

Testing Instructions

• Open the live preview
• Go to /patterns
• Scroll down to the site layouts
• Pick one of the layouts
• Click on Customize content with AI
• Wait until loading is done
• Enter a prompt and click on generate content
• Check that the Generating content for your site. message is properly aligned both on desktop and mobile

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)?