Stable release of v3.2.0-beta1

Move beta to main repo. Fix #1053 so that the right and left tabs display correctly in Joomla 4&5.

admin/helpers/html/batch_.php

@@ -25,7 +25,7 @@ abstract class JHtmlBatch_
 	 * @var    array
 	 * @since  3.0
 	 */
-	protected static $ListSelection = array();
+	protected static $ListSelection = [];
 
 	/**
 	 * Render the batch selection options.