[K6.3] Fix for missing namespaced HTMLHelper #9835 (#9836)

Author: Ruud68

src/admin/src/View/Users/HtmlView.php

@@ -16,6 +16,7 @@
 \defined('_JEXEC') or die();
 
 use Exception;
+use Joomla\CMS\HTML\HTMLHelper;
 use Joomla\CMS\Language\Text;
 use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
 use Joomla\CMS\Object\CMSObject;