Add missing escaping

Author: rominail

themes/bootstrap5/templates/record/get-this/biblio-info.phtml

@@ -1,6 +1,7 @@
 <!-- Get-this: biblio-info -->
 <?php
-$callNum = $this->getThis->getCallNumber() ?? $this->transEsc('data_unavailable');
+$callNum = $this->getThis->getCallNumber() ?? $this->translate('data_unavailable');
+$callNum = $this->escapeHtml($callNum);
 ?>
 <div>
   <p>

themes/bootstrap5/templates/record/get-this/holdings.phtml

@@ -7,7 +7,8 @@ function getDisplay($view, $item)
 {
     $item['item_id'] ??= null;
     $location = $view->getThis->getLocation($item['item_id']);
-    $callNumber = $view->getThis->getCallNumber($item['item_id']) ?? $view->transEsc('Alternative');
+    $callNumber = $view->getThis->getCallNumber($item['item_id']) ?? $view->translate('Alternative');
+    $callNumber = $view->escapeHtml($callNumber);
     if ($view->getThis->showCopyNumber() && $copyNumber = $view->getThis->getCopyNumber($item['item_id'])) {
         $copyNumber = ' (' . $view->transEscAttr('copy_number', ['%%number%%' => $copyNumber]) . ')';
     } else {