Fixes and cleanup for user pending/registration calls

resources/views/emails/user/pending.blade.php

@@ -4,5 +4,5 @@
 You will be notified as soon as your account is approved!
 
 Thanks,<br>
-{{ config('app.name') }}
+Management, {{ config('app.name') }}
 @endcomponent

resources/views/emails/user/registered.blade.php

@@ -8,5 +8,5 @@ Visit your account now!
 @endcomponent
 
 Thanks,<br>
-{{ config('app.name') }}
+Management, {{ config('app.name') }}
 @endcomponent

resources/views/emails/user/rejected.blade.php

@@ -0,0 +1,9 @@
+@component('mail::message')
+# Hi {!! $user->name !!},
+
+Your registration to our airline was denied. Please contact
+an administrator with any questions you may have.
+
+Thanks,<br>
+Management, {{ config('app.name') }}
+@endcomponent