View file themes/default/templates/system/app/bbcode.phtml

<?php
/**
 * @var $input
 * @var $smiles
 */

?>
<script>
    var wysibb_settings = {
        buttons: "bold,italic,underline,strike,|,smilebox,link,code,quote,video,fontcolor,|,removeFormat",
        smileList: <?= json_encode($smiles) ?>
    }
    var wysibb_input = '#<?= $input ?>';
    setTimeout(function () {
        document.getElementById("<?= $input ?>").removeAttribute("required");
    }, 50);
</script>