feat(docs): databox + server docs

[blakebyrnes]

This PR adds documentation for Databox and Server, and changes "Website" so it can pull from all nested projects.

Fixes:

• extractLater could not be destructed
• CollectedSnippets.getAll should return values only
• Remove redundant IDatabox interface

To add a new project to the website, you have to:

1. Add a docs folder to the project with a links.yaml in it to customize the side navigation
2. Add a plugin entry to gridsome.config.js to read the docs folder of the project

• this entry must define a unique typeName for the project docs (this is a limitation of gridsome reading from multiple folders)
• this entry should define an editingDomain that points at the docs location on github
• point at a new template for this type of doc

3. Add a website/src/templates/{TemplateName}.vue file with your specified template

• modify the variables to be your TypeName and point at your links.yaml if copying a previous template