Moved from "app/src" to "app/application".

Otherwise phpstorm doesn't understand the paths correctly. He thinks that this is not a complete application, but a package. And when creating a class, the namespace indicates “app” with a small letter, but should be “App”.

app/application/lang/en/admin-sections.php

@@ -0,0 +1,8 @@
+<?php
+return [
+    'Dashboard' => 'Dashboard',
+    'User group' => 'User group',
+    'Users' => 'Users',
+    'AdminPanel' => 'Admin Panel',
+    'Projects' => 'Projects',
+];