Remove suggested colors hover underline

What does this MR do?

• Removes the blue hover underline for the suggested color containers
• Added cursor: pointer to the suggested color containers

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

Shouldn't be 😄

Why was this MR needed?

Improves UI

Screenshots (if relevant)

Before:

After:

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Tests
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if you do - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #21792 (closed)