Fix notification animation

Signed-off-by: Christian König <ckoenig@posteo.de>

scripts/pi-hole/js/utils.js

@@ -93,6 +93,10 @@ function showAlert(type, icon, title, message) {
       type: type,
       delay: 5000, // default value
       mouse_over: "pause",
+      animate: {
+        enter: "animate__animated animate__fadeInDown",
+        exit: "animate__animated animate__fadeOutUp"
+      }
     };
   switch (type) {
     case "info":