PLUGIN_NAME already defined

Hi there,

With the latest version of PHP 8.1 and WordPress 6.0.2 you might encounter logging of warnings regarding PLUGIN_NAME as follows:
Constant PLUGIN_NAME already defined in /var/lib/wordpress/wp-content/plugins/404-solution/includes/Loader.php on line 17

Just as a quick fix:

--- Loader.php.org      2022-10-06 10:26:59.339522126 +0200
+++ Loader.php  2022-10-06 10:27:17.963063849 +0200
@@ -14,7 +14,7 @@
 define( 'URL_TRACKING_SUFFIX', '?utm_source=404SolutionPlugin&utm_medium=WordPress');
 define( 'ABJ404_HOME_URL', 'https://www.ajexperience.com/404-solution/' . URL_TRACKING_SUFFIX);
 define( 'ABJ404_FC_URL', 'https://www.ajexperience.com/' . URL_TRACKING_SUFFIX);
-define( 'PLUGIN_NAME', '404 Solution');
+if (!defined('PLUGIN_NAME')) define( 'PLUGIN_NAME', '404 Solution');

 // STATUS types
 define( 'ABJ404_TRASH_FILTER', -1 );

Cheers!