refactor(modules): extract castopod parts into a modules/ folder for a scalable HMVC structure

- create Admin, Analytics, Auth, Fediverse and Install modules in the root modules/ folder
- rename
ActivityPub to Fediverse

modules/Admin/Controllers/BaseController.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Modules\Admin\Controllers;
+
+use CodeIgniter\Controller;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\ResponseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Class BaseController
+ *
+ * BaseController provides a convenient place for loading components and performing functions that are needed by all
+ * your controllers. Extend this class in any new controllers: class Home extends BaseController
+ *
+ * For security be sure to declare any new methods as protected or private.
+ */
+
+class BaseController extends Controller
+{
+    /**
+     * An array of helpers to be loaded automatically upon class instantiation. These helpers will be available to all
+     * other controllers that extend BaseController.
+     *
+     * @var string[]
+     */
+    protected $helpers = ['auth', 'breadcrumb', 'svg', 'components', 'misc'];
+
+    /**
+     * Constructor.
+     */
+    public function initController(
+        RequestInterface $request,
+        ResponseInterface $response,
+        LoggerInterface $logger
+    ): void {
+        // Do Not Edit This Line
+        parent::initController($request, $response, $logger);
+    }
+}