better singleton instance

vendor/open-function-computers-llc/rad-theme-engine/src/Site.php

@@ -24,6 +24,7 @@ class Site
     {
         if (self::$instance === null) {
             self::$instance = new self([]);
+            self::$instance->bootstrap();
         }
         return self::$instance;
     }
@@ -35,7 +36,6 @@ class Site
         }
 
         $this->config = $config;
-        $this->bootstrap();
     }
 
     private function bootstrap()