I'm a young Shopify developer, and I'm trying to create a Shopify checkout extension where the text the user added should be added to the order note as well. import { reactExtension, TextField, } from '@shopify/ui-extensions-react/checkout'; export default reactExtension( 'purchase.checkout.block.render', () => <Extension />, ); function Extension() { return <TextField name="checkout[note]" id="checkout_note" label="PO # / Note" />; } Could you please help me figure this out? Also, please suggest how I could use useNote()