improve config of small image

themes/beauty/views/layout/main.php

@@ -102,7 +102,7 @@ require_once __DIR__ . '/../../../../plugins/Html.php';
     <script src="/js/video.min.js"></script>
     <script src="/js/beauty.js?v<?= Html::getStaticFileVersion('beauty.js', 'js') ?>"></script>
     <script>
-        <?php if (empty(FSC::$app['config']['enableSmallImage']) || FSC::$app['config']['enableSmallImage'] == 'false') {
+        <?php if (empty(FSC::$app['config']['enableSmallImage']) || FSC::$app['config']['enableSmallImage'] === 'false') {
             echo <<<eof
 var disableSmallImage = true;
 eof;