Move email/ resources to mail/, added invoice generated email to admin, updated email template

app/Mail/ChangeRequest.php

@@ -52,7 +52,7 @@ class ChangeRequest extends Mailable
 		}
 
 		return $this
-			->markdown('email.admin.service.change')
+			->markdown('mail.admin.service.change')
 			->subject($subject)
 			->with(['site'=>$this->service->site]);
 	}