Implement new accessibility updates with add_theme_support. Add mobile nav styling support

includes/functions/theme-functions.php

@@ -29,6 +29,9 @@ function trestle_add_theme_support() {
 	// Add support for footer widgets if specified in Trestle settings.
 	add_theme_support( 'genesis-footer-widgets', trestle_get_option( 'footer_widgets_number' ) );
 
+	//* Add Accessibility support
+	add_theme_support( 'genesis-accessibility', array( 'headings', 'drop-down-menu',  'search-form', 'skip-links', 'rems' ) );
+
 }
 
 add_action( 'after_setup_theme', 'trestle_remove_genesis_css_enqueue' );
@@ -482,4 +485,4 @@ function trestle_is_current_or_descendant_post( $post_id = '', $target_id = '' )
 
 	return false;
 
-}
+}