feat(dev): Added react docs for Pattern + refactor

This adds support for not only documenating components, but also
constants and functions that may be exported next to components.

sites/dev/docs/reference/packages/react/components/modal/readme.mdx

@@ -7,15 +7,18 @@ import { ComponentDocs } from '@site/src/components/component-docs.js'
 import * as jsdoc from '@site/prebuild/jsdoc/components.modal.mjs'
 import { ModalWrapperExample } from './_examples.js'
 
-
 <DocusaurusDoc>
 
-The __Modal component family provides the following components:
+- [Components](#components)
+
+## Components
+
+The \_\_Modal component family provides the following components:
 
 - [ModalWrapper](#modalwrapper)
 
-## ModalWrapper
+### ModalWrapper
+
 <ComponentDocs docs={jsdoc.jsdocModalWrapper} example={ModalWrapperExample} />
 
-
 </DocusaurusDoc>