Fix: default value field config system

etc/config.xml

@@ -30,6 +30,9 @@
             <general>
                 <enabled>1</enabled>
             </general>
+            <duplicate>
+                <canonical_tag>0</canonical_tag>
+            </duplicate>
             <richsnippets>
                 <enable_product>0</enable_product>
                 <brand>manufacturer</brand>

view/adminhtml/web/css/source/_module.less

@@ -0,0 +1,23 @@
+/**
+ * Mageplaza
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Mageplaza.com license that is
+ * available through the world-wide-web at this URL:
+ * https://www.mageplaza.com/LICENSE.txt
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade this extension to newer
+ * version in the future.
+ *
+ * @category    Mageplaza
+ * @package     Mageplaza_Seo
+ * @copyright   Copyright (c) Mageplaza (https://www.mageplaza.com/)
+ * @license     https://www.mageplaza.com/LICENSE.txt
+ */
+
+#seo_duplicate_canonical_tag {
+    height: 120px !important;
+}