Basic support for creating invoices

resources/views/app.blade.php

@@ -3,6 +3,7 @@
     <head>
         <meta charset="utf-8">
         <meta name="viewport" content="width=device-width, initial-scale=1">
+        <meta name="csrf-token" content="{{ csrf_token() }}">
 
         <title inertia>{{ config('app.name', 'Nexus') }}</title>