Creates the nav entities to be used in the header (top menu)
Uses the List.Header item view's collection in #header-template to generate the navigation links
Converts the HeaderApp.List itemView into a compositeView
Adds a divider between the nav links
Implements the functionality to toggle the nav item class to show it has been selected
Creates the bare bone of the AdminApp
Creates the bare bone of the DeliveriesApp
Creates the bare bone of the DashboardApp
Refactors the nav item-selecting functionality and auto selects an item when page is hard refreshed