facetwp add reset button to flyout

custom-hooks.php

<?php
/** appends your custom html before the facets output **/
add_action( 'wp_head', function() {
	?>
	<script>
	(function($) {
		$(function() {
			if ('object' != typeof FWP) {
            			return;
        		}
			FWP.hooks.addFilter('facetwp/flyout/flyout_html', function( flyout_html ) {
				var html = `
					<button onclick="FWP.reset()">Reset</button>
				`;
				return flyout_html.replace('{content}', '{content}' + html );
			});
		});
	})(jQuery);
	</script>
	<?php
} );