Migrate Move issue button to ButtonComponent

What does this MR do and why?

It updates Move issue button in app/views/shared/issuable/_sidebar.html.haml to be rendered with a new ButtonComponent. The button is located at the bottom of the sidebar and toggles dropdown. Other buttons can't be cleanly migrated to the new component so they are left as-is

Sample url.

Screenshots or screen recordings

These are strongly recommended to assist reviewers and reduce the time to merge your change.

How to set up and validate locally

Open any issue, and try to move between projects.

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 #363958 (closed)