Fix SonarQube code quality issues to improve rating from B to A

wp-plugin-starter-template.php

@@ -34,5 +34,8 @@ if ( ! defined( 'WPINC' ) ) {
 // Load the main plugin class.
 require_once plugin_dir_path( __FILE__ ) . 'includes/class-plugin.php';
 
+// Initialize the plugin and store the instance in a global variable.
+$wpst_plugin = new WPALLSTARS\PluginStarterTemplate\Plugin( __FILE__, '0.1.10' );
+
 // Initialize the plugin.
-new WPALLSTARS\PluginStarterTemplate\Plugin( __FILE__, '0.1.10' );
+$wpst_plugin->init();