UploadField doesn't work in a purely react form

[GuySartorelli]

UploadField isn't working in a purely react form. Clicking on "choose existing" results in an Invariant Violation:

Could not find "client" in the context or passed in as a prop. Wrap the root component in an <ApolloProvider>, or pass an ApolloClient instance in via props

Trying to upload a new file results in a 403 error

Action 'TestEditForm' isn't allowed on class TestReactFormBuilder.

This can be seen in the react form at /admin/test-react/ added in the frameworktest module.

Acceptance criteria

• UploadField works as expected in a purely react form
• We have some test added to CI to confirm this continues to work

[maxime-rainville]

Let's maybe double check that the problem is not just with that react form in frameworktest before we scope this.