Create a notification item to place in a dropdown notification menu
notificationItem(text, icon = shiny::icon("warning"), status = "success",
  href = NULL)The notification text.
An icon tag, created by icon.
The status of the item This determines the item's background color. Valid statuses are listed in validStatuses.
An optional URL to link to.
dashboardHeader for example usage.
Other menu items: messageItem,
  taskItem