dereferenceDocument is excluded from the browser build

[potterbm-cb]

Describe the bug
The dereferenceDocument function is exported in index.ts (source) but not exported in index-web.ts (source).

It seems like this is an intentional exclusion but I can't figure out why that would be. The documentation doesn't mention this omission.

To Reproduce
Steps to reproduce the behavior:

1. Install @open-rpc/schema-utils-js in any webpack app
2. Add import { dereferenceDocument } from '@open-rpc/schema-utils-js'; to any file
3. The dereferenceDocument import will be undefined.

Expected behavior
index-web.ts should export dereferenceDocument

[potterbm-cb]

If this exclusion isn't intentional I've opened #975 to address it.