add strict type

Author: ihormandzyuk

registration.php

@@ -4,6 +4,8 @@
  * Please visit Magefan.com for license details (https://magefan.com/end-user-license-agreement).
  */
 
+declare(strict_types=1);
+
 \Magento\Framework\Component\ComponentRegistrar::register(
     \Magento\Framework\Component\ComponentRegistrar::MODULE,
     'Magefan_Community',