FEATURE: add error message to contact form

templates/DoucovaniNeratovice/Resources/assets/css/grayscale.css

@@ -353,3 +353,8 @@ footer p {
 	background: rgba(58, 200, 51, 0.34);
 	color: darkgreen;
 }
+
+.notification.alert {
+	background: rgba(200, 79, 0, 0.38);
+	color: firebrick;
+}

templates/DoucovaniNeratovice/Resources/views/modules/contactform/visitor/default.blade.php

@@ -4,6 +4,13 @@
     </div>
 @endif
 
+@if(session('error'))
+    <div class="notification alert">
+        Bohužel nebylo možné odeslat zprávu. Pošlete mi to prosím ručně na {{$page->module_settings->contactEmail}}.
+        Děkuji!
+    </div>
+@endif
+
 <section id="{{$page->url}}" class="container content-section text-center">
     <div class="col-lg-8 col-lg-offset-2">
         <h2>{{$page->title}}</h2>