Update the button component in the page settings

What does this MR do and why?

#374770 (closed)

Screenshots or screen recordings

Before	After

It's a button migration issue, so no visual change.

How to set up and validate locally

• Prerequisite: (I think) You need to set up a runner to view this page.
• Prerequisite2: Disable the feature flag to view this page

  Feature.disable(:use_pipeline_wizard_for_pages)

1. Visit or create a project that you can deploy (I used the doc https://docs.gitlab.com/ee/user/project/pages/ and created a new project from a HTML template)
2. Once you setup the .gitlab-ci.yml file and run the pipeline successfully, you could see the page in the menu Settings > Pages

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.