refactor: organize types by kind

[angeloashmore]

Types of changes

• [x] Chore (a non-breaking change which is related to package maintenance)
• [ ] Bug fix (a non-breaking change which fixes an issue)
• [ ] New feature (a non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Description

This PR further re-organizes all types into the following categories, each with their own directory:

• api
• graphql
• model
• value
• webhook

Within each directory, individual files contain a single concept. A kind of field, for example, is a concept.

It splits up previously grouped concepts, like Link and Link to Media fields, into their own files. See src/value/link.ts and src/value/linkToMedia.ts for an example.

This organization is modeled after @prismicio/mock (see the src directory there).

Field renames

The following types were renamed to better represent their underlying concept:

• RelationField -> ContentRelationshipField
• FilledLinkToDocumentField -> FilledContentRelationshipField

The old names are still exported as aliases, but perhaps they could be removed in 💥 The Big Merge.

Checklist:

• [ ] My change requires an update to the official documentation.
• [x] All TSDoc comments are up-to-date and new ones have been added where necessary.
• [x] All new and existing tests are passing.

🐈

[angeloashmore]

Adjusted src/index.ts to export all of the types directly rather than indirectly via export *.

• Old: https://github.com/prismicio/prismic-types/blob/95e962ad70bca95b822336bb41114d26778ffb13/src/index.ts
• New: https://github.com/prismicio/prismic-types/blob/6f75c7bb79fb205eff6d111c85c840aae8b44d48/src/index.ts

I think I prefer the new way. What do you think, @lihbr? Keep in mind that the nested index.ts files have been removed to reduce the maintenance burden.

[lihbr]

I think I prefer the new version too.

Good to merge?

[angeloashmore]

Yup! I think it’s at a good point.