Migrate buttons to Pajamas component

What does this MR do and why?

Migrate Normal view, Blame, History, and Permalink buttons to Pajamas component.

Screenshots or screen recordings

Before	After

How to set up and validate locally

Go to https://gdk.test:3000/gnuwget/Wget2/-/blob/master/README?plain=0 or any other project's file.

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.

Related to #417824 (closed)