Prompt for nickname on registration (#4)

Allow users to set a nickname while registering, controlled by settings. Also, add a setting to hide the username input entirely and randomly generate the username.

Co-authored-by: Sami Mazouz <sychocouldy@gmail.com>

extensions/nicknames/tests/integration/setup.php

@@ -0,0 +1,16 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Flarum\Testing\integration\Setup\SetupScript;
+
+require __DIR__.'/../../vendor/autoload.php';
+
+$setup = new SetupScript();
+
+$setup->run();