feat: export useSharedProps

This hook allows access to all relevant props passed to the RenderHTML
component, anywhere down the React tree!

packages/render-html/src/index.ts

@@ -21,3 +21,4 @@ export { default as useTTree } from './hooks/useTTree';
 export { default as defaultRenderers } from './render/defaultRenderers';
 export { default as extendDefaultRenderer } from './render/extendDefaultRenderer';
 export { default as splitBoxModelStyle } from './helpers/splitBoxModelStyle';
+export { useSharedProps } from './context/SharedPropsContext';