function showNoResults() {
	resultsLiveRegion.innerHTML = "No results found.";
	resultsElement.innerHTML = "No results found.";
	resultsElement.setAttribute("data-results", "false");
}
Displays a "No results found" message in both the live region and results display area.
This is typically used when no matching results are found in the search.
@returns {void} - This function doesn't return anything.