refactor(controller): usage of attributes instead of annotations

appinfo/info.xml

@@ -55,7 +55,7 @@ In case of downtime, you can download **Custom Menu** from [here](https://kim.de
     <screenshot>https://gitnet.fr/deblan/side_menu/raw/branch/master/screenshots/nc25_default_menu.png</screenshot>
     <dependencies>
         <nextcloud min-version="30" max-version="30"/>
-        <php min-version="8.0"/>
+        <php min-version="8.1"/>
     </dependencies>
     <settings>
         <admin>OCA\SideMenu\Settings\Admin</admin>

appinfo/routes.php

@@ -1,31 +0,0 @@
-<?php
-
-/**
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-return [
-    'routes' => [
-        ['name' => 'App#index', 'url' => '/', 'verb' => 'GET'],
-        ['name' => 'Css#stylesheet', 'url' => '/css/stylesheet', 'verb' => 'GET'],
-        ['name' => 'Js#script', 'url' => '/js/script', 'verb' => 'GET'],
-        ['name' => 'Js#config', 'url' => '/js/config', 'verb' => 'GET'],
-        ['name' => 'Nav#items', 'url' => '/nav/items', 'verb' => 'GET'],
-        ['name' => 'PersonalSetting#valueSet', 'url' => '/personalSetting/valueSet', 'verb' => 'POST'],
-        ['name' => 'AdminSetting#removeCache', 'url' => '/admin/cache/remove', 'verb' => 'GET'],
-        ['name' => 'AdminSetting#exportConfiguration', 'url' => '/admin/config/export', 'verb' => 'GET'],
-    ],
-];