Add test for start page

phpcs-errors:1646 phpunit-status:successful

index.php

@@ -79,7 +79,7 @@
         echo "
         <li id='{$fieldName}' data-alt='{$field['name_human_readable']}' data-value='{$fieldName}' data-for='{$fieldName}' class='";
         if ($hasTooltip === true) echo " newToolTipTag";
-        if ($field['required'] === true) echo " requiredField";
+        if (!empty($field['required']) and $field['required'] === true) echo " requiredField";
         echo "'";
         if (!empty($field['dependsOn'])) {
             echo " data-dependencies='" . htmlspecialchars(implode(";", $field['dependsOn'])) . "'";