Hello!I am following the tutorial for making a custom app, and it says to create an extension function that references my target, and export it using a named export. I am getting an error when doing it this way, which way am I supposed to be setting ...

I am following the instructions in this tutorial for custom apps.https://shopify.dev/docs/apps/checkout/custom/banners/add?framework=javascript However, the banner implemented just defaults to the text that appears when there are no settings input, i...