public function sendContactMessage(Request $request, AppMailer $mailer)
{
// Validate request.
$this->validate($request, ['name' => 'required|max:255', 'email' => 'required|email|max:255', 'message' => 'required']);
// Send message.
$mailer->sendContactMessage($request);
// Send message has been recieved.
$mailer->sendRecievedContactMessage($request);
// Flash message.
session()->flash('message', 'Your message has been sent! We will get back to you as soon as possible.');
// Redirect back.
return redirect('contact');
}