ISTWCMS-7189 Add switchToIFrame to make WcmsTestsLinkFieldCest work

acceptance/WcmsTestsLinkFieldCest.php

@@ -311,6 +311,9 @@ class WcmsTestsLinkFieldCest {
           $i->click($block);
           $i->waitForText('Configure block');
 
+          // Switch the block form iframe.
+          $i->switchToIFrame('iframe[class="lbim-dialog-iframe"]');
+
           // Fill the block fields.
           $this->fillBlockFields($i, $fields, 'Add block');