Update all instances of "fa-refresh" to "fa-spinner"

What does this MR do?

This merge request updates all instances of the CSS class "fa-refresh" to "fa-spinner".

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

No

Why was this MR needed?

There were a few areas within the codebase that still implemented the old loading icon.

Screenshots (if relevant)

Before

After

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #22714 (closed)