How to define JSX.IntrinsicElements using nano_jsx with Deno?

How do I get rid of this error?

> JSX element implicitly has type 'any' because no interface 'JSX.IntrinsicElements' exists.deno-ts(7026)

Here's the problematic code:

const problematicCode = <div>Hello world</div>

This is example code in this Deno article: https://deno.com/blog/a-whole-website-in-a-single-js-file-continued

Here's the source code: https://dash.deno.com/playground/website-in-a-single-js-2

For Nano JSX to declare the jsx type in a single file use:

/** @jsx h */
/** @jsxFrag Fragment */
import { h, Fragment } from "https://deno.land/x/nano_jsx@v0.0.37/mod.ts";

For Preact:

/** @jsx h */
/** @jsxFrag Fragment */
import { h, Fragment } from "https://esm.sh/preact@10.8.2";

Fresh uses the deno.json config with the preact import map like this:

  "compilerOptions": {
    "jsx": "react-jsx",
    "jsxImportSource": "preact"
  }