TSML UI shortcode compatibility with block themes (#722)

* defer javascript and trying to suppress header / footer warnings

* implementing brian and wayne's suggestions

* undoing changes to other template files

includes/shortcodes.php

@@ -103,7 +103,7 @@ function tsml_ui()
 {
 	global $tsml_mapbox_key, $tsml_nonce, $tsml_conference_providers, $tsml_language, $tsml_programs, $tsml_program, $tsml_ui_config, $tsml_feedback_addresses;
 	$js = defined('TSML_UI_PATH') ? TSML_UI_PATH : 'https://tsml-ui.code4recovery.org/app.js';
-	wp_enqueue_script('tsml_ui', $js);
+	wp_enqueue_script('tsml_ui', $js, [], false, true);
 	wp_localize_script('tsml_ui', 'tsml_react_config', array_merge(
 		[
 			'conference_providers' => $tsml_conference_providers,