[FEAT] Consider docs-gen moving away from dgeni

[damienwebdev]

Impetus:

• dgeni-packages is archived
• Dgeni-typescript confuses types that are equivalent (Dgeni confuses identical types #3744)

[damienwebdev]

We've decided that we're going to continue with Dgeni. I reviewed:

• https://jsdoc.app/
• https://docusaurus.io/
• https://typedoc.org/
• https://compodoc.app/

And was unconvinced about the value prop of these other libraries by comparison.