[4.4] Form Text Field: Translate text for frontend validation (joomla#43198)

* Form Text Field: Translate text for frontend validation

* Update text.php

---------

Co-authored-by: Quy <[email protected]>

Author: Hackwar

layouts/joomla/form/field/text.php

@@ -95,7 +95,7 @@
     !empty($pattern) ? 'pattern="' . $pattern . '"' : '',
 
     // @TODO add a proper string here!!!
-    !empty($validationtext) ? 'data-validation-text="' . $validationtext . '"' : '',
+    !empty($validationtext) ? 'data-validation-text="' . $this->escape(Text::_($validationtext)) . '"' : '',
 ];
 
 $addonBeforeHtml = '<span class="input-group-text">' . Text::_($addonBefore) . '</span>';