Ref in props tab for froward ref components

[ashikmeerankutty]

Summary

Makes progress on #3056

• Updated react-docgen-typescript
• Show ref as a prop in props tab if component is a forward ref component

Checklist

• Props have proper autodocs

[kibanamachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[chandlerprall]

jenkins test this

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_3956/

[chandlerprall]

This looks good, but is breaking the Props tab for EuiMarkdownEditor - presumably because the editor's ref is a custom value via useImperativeHandle

eui/src/components/markdown_editor/markdown_editor.tsx

Lines 285 to 289 in 81f22fe

	useImperativeHandle(
	ref,
	() => ({ textarea: textareaRef.current, replaceNode }),
	[replaceNode]
	);

[ashikmeerankutty]

This looks good, but is breaking the Props tab for EuiMarkdownEditor - presumably because the editor's ref is a custom value via useImperativeHandle

The problem was with React. replaced it and is now working fine. Can you please verify.

[chandlerprall]

jenkins test this

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_3956/

[chandlerprall]

LGTM; Spot checked existing prop definitions were not affected, but components with forwardRef now include ref as desired 👍