List pieces of documentation matching the API features we imagined in previous cycle

[romaricpascal]

What

List the pieces of content we anticipate to need for documenting the features we're anticipating to offer in our public API (based on the work in #5147)

Why

This should help us figure out where we could add this content to the Frontend docs

Who needs to work on this

Developers, Technical writer

Who needs to review this

Developers, Technical writer

Done when

• We have a document with an outline of the different pieces of content we think we'll need

[romaricpascal]

Closing as this the list of features is in this working document (internal)