Convert data attributes in search_bar.html.haml

What does this MR do?

Converts the data attributes in search_bar.html.haml

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

None

Why was this MR needed?

~"technical debt"

Screenshots (if relevant)

None

Does this MR meet the acceptance criteria?

• 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 it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #29082 (closed)