fix: [app] Fixed some deprecation notices

src/Controller/AppController.php

@@ -43,6 +43,10 @@ class AppController extends Controller
     public $breadcrumb = [];
     public $request_ip = null;
 
+    public $MetaFields = null;
+    public $MetaTemplates = null;
+    public $Users = null;
+
     /**
      * Initialization hook method.
      *

src/Model/Behavior/MetaFieldsBehavior.php

@@ -45,6 +45,7 @@ class MetaFieldsBehavior extends Behavior
 
     private $aliasScope = null;
     private $typeHandlers = [];
+    private $_metaTemplateFieldTable;
 
     public function initialize(array $config): void
     {