Prep Plugin for release on WordPress.org

Escape everything that should be escaped.
Add nonce checks where needed.
Sanitize all inputs.
Apply Code style changes across the codebase.
Correct many deprecation notices.
Optimize load order of many filters.

views/base/dash.php

@@ -6,10 +6,9 @@
  */
 ?>
 <div id="wp-ultimo-wrap" class="<?php wu_wrap_use_container(); ?> wrap wu-styling">
-
 	<h1 class="wp-heading-inline">
 
-	<?php echo $page_title; ?>
+	<?php echo esc_html($page_title); ?>
 
 	<?php
 	/**
@@ -32,7 +31,7 @@
 
 		<?php endif; ?>
 
-		<?php echo $action_link['label']; ?>
+		<?php echo esc_html($action_link['label']); ?>
 
 		</a>
 
@@ -49,11 +48,8 @@
 	?>
 
 	</h1>
-
 	<hr class="wp-header-end">
-
 	<?php do_action('wu_dash_before_metaboxes', $page); ?>
-
 	<?php if (apply_filters('wu_dashboard_display_widgets', true)) : ?>
 
 	<div id="dashboard-widgets-wrap">