Fatal error: Uncaught Error: Class "Illuminate\Mail\Mailable" not found in C:\laragon\www\wao\platform\packages\corbital\laravel-emails\src\Mail\TestMailDemonstration.php:21 Stack trace: #0 {main} thrown in C:\laragon\www\wao\platform\packages\corbital\laravel-emails\src\Mail\TestMailDemonstration.php on line 21