Resolve "New design for cancel / stop pipeline confirmation"

What does this MR do?

When a user stops or retries a pipeline, they should see a modal to confirm that action

• Add a Vue component for the modal that handles a simple confirm dialog
• Refactor async-button-component to work with new setup

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered
• End-to-end tests pass (package-qa manual pipeline job)

What are the relevant issue numbers?

Closes #41297 (closed)