Adding Custom domains (#247)

* WIP

* wip

* Finished doing most of the work

config/custom-domains.php

@@ -0,0 +1,9 @@
+<?php
+
+return [
+
+    'enabled' => !empty(env('CADDY_SECRET')) && !empty(env('CADDY_AUTHORIZED_IPS', [])),
+    'caddy_secret' => env('CADDY_SECRET'),
+    'authorized_ips' => env('CADDY_AUTHORIZED_IPS', []),
+
+];