- Installed plugin for Lucide icons shortcodes.
- Added `aria-hidden: true` and `focusable: false` for accessible icons.
- Icon names and sizes included in pages front matter for page nav.
- Header template includes Lucide shortcodes.

- Created a directory for the top level main pages of the navigation.
- Included a directory data file to set default front matter.
- The `order` and `title` keys are used by eleventyNavigation plugin.