Use Improved TypeDoc

[labkey-nicka]

Rationale

With TypeStrong/typedoc#1364 a contributor to TypeDoc as made some significant improvements to how TypeDoc configures and builds a documentation site. This work uses the latest beta version of TypeDocs to generate a much improved API docs site.

Changes

• Update TypeDoc to 0.20.0-beta.26 and update our typedoc.js to improve documentation layout.
• Move "fieldKey" modules to top-level so they better align with how they're actually exported.
• Improve documentation for filters and their types. Done as part of an exercise to see how TypeDoc handled inline docs.
• Fixes issues 42014 and 40724 with improvements to Domain documentation.
• Package updates.