Add Full-Text Search to a Data Table

Add a live search input above the existing data table. As the user types, wait 300ms after the last keystroke (debounce) before querying the database to avoid excessive requests. Use Supabase's full-text search (or a ILIKE query if full-text is not yet set up) to search across both the title and description columns simultaneously. Highlight the matching search term inside the returned results using a yellow background span so users can see exactly what matched. When the search returns no results, show a centered empty state with the message "No results for '[query]'" and a suggestion to try different keywords. Add an X icon button inside the search input that clears the query and restores the full unfiltered table. Ensure that any active column sort order is preserved when search results are displayed.