Replace success buttons with the confirm variants

What does this MR do and why?

Closes #354507 (closed)

Screenshots or screen recordings

As-is	To-be

How to set up and validate locally

You could visit one of the Group (owner) in the GDK and navigate to Settings > General > Custom project templates and Settings > General > Templates

An Example link would be - http://127.0.0.1:3000/groups/twitter/-/edit

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 #354507 (closed)