Update from PSR-2 to PSR-12

- Tabs are indent
- Warning at 120, Error at 240 char length

www/admin/phan_test.php

@@ -1,7 +1,9 @@
-<?php declare(strict_types=1);
+<?php
+
+declare(strict_types=1);
 
 require 'config.php';
-require BASE.INCLUDES.'admin_header.php';
+require BASE . INCLUDES . 'admin_header.php';
 
 // $DATA['foo'] = 'bar';
 // $messages['foo'] = 'bar';