Move 'Advanced search' message to title

What does this MR do?

This MR moves the "Advanced search" message from the search bar to the title.

Screenshots

Before	After

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Related to #30783 (closed)