The Navigation Presentation is intended to help the user move around the content.
The Navigation Presentation will vary depending on the context where the Navigation is shown. For example:
    Site Header shows Navigation Links as a horizontal list, and children Navigation Links are within dropdowns that appear on hover.
    The Sidebar shows a vertical list of Navigation Links, and children links are indented beneath
Navigation Links
A hierarchy of links
Navigation Block Types
Critically, many blocks will not be shown in the Navigation Presentation. The following blocks will appear:
    Heading: Shown as navigation links, clicking will go to the Document with the Heading Block Node highlighted, or a focus view of the Block Node
    Feature: Same as Heading blocks
    Embeds
      Card View: Appaear as regular navigation links
      Content View: Embed the Navigation Presentation of the referenced Content
      Navigation Embeds: Embed the Navigation of the referenced Document
    Query: Each result of the query is shown as a navigation link
Embed Views
When the Navigation Content includes an Embed Block, the view attibute is critical to define the Navigation Presentation.
Activity