Slightly more visible messages

front/src/style/_main.scss

@@ -166,6 +166,9 @@ body {
   @include media(">widedesktop") {
     left: $widedesktop-sidebar-width;
   }
+  > .ui.message {
+    box-shadow: 0px 0px 7px rgba(0, 0, 0, 0.7);
+  }
 }
 .main-pusher {
   padding: 1.5rem 0;