Update from PSR-2 to PSR-12

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

www/lib/CoreLibs/Convert/MimeAppName.php

@@ -1,10 +1,12 @@
-<?php declare(strict_types=1);
+<?php
 
 /*
  * Translates a mime id string into the actual application or file name
  * for example 'text/plain' will output 'Text file'
  */
 
+declare(strict_types=1);
+
 namespace CoreLibs\Convert;
 
 class MimeAppName