✨: move phpbb to app dir

roles/phpbb/templates/config.php.j2

@@ -0,0 +1,19 @@
+<?php
+// phpBB 3.0.x auto-generated configuration file
+// Do not change anything in this file!
+$dbms = 'mysqli';
+$dbhost = 'localhost';
+$dbport = '';
+$dbname = '{{ phpbb_maria_database }}';
+$dbuser = '{{ phpbb_maria_user }}';
+$dbpasswd = '{{ phpbb_maria_password }}';
+$table_prefix = 'phpbb_';
+$acm_type = 'file';
+$load_extensions = '';
+
+libxml_disable_entity_loader(false);
+
+@define('PHPBB_INSTALLED', true);
+// @define('DEBUG', true);
+// @define('DEBUG_EXTRA', true);
+?>