[JENKINS-71880] fix notification in breadcrumb (#8493)

* [JENKINS-71880] fix notification in breadcrumb

fix the notification when e.g. triggering a build via the breadcrumb.

replace the hoverNotification with a notificationBar. When the
hoverNotification appears the actual menu disappears making the
notification somehow look misplaced.
Prepend the message with the actual menu entry to make it more clear
what the message means.

* run prettier

war/src/main/js/components/dropdowns/jumplists.js

@@ -106,9 +106,10 @@ function mapChildrenItemsToDropdownItems(items) {
               method: "post",
               headers: crumb.wrap({}),
             });
-            if (event.length === 1 && event[0].target != null) {
-              hoverNotification("Done.", event[0].target);
-            }
+            notificationBar.show(
+              item.displayName + ": Done.",
+              notificationBar.SUCCESS,
+            );
           }
         }
       },