Use esm for ts-node (#2459)

* Use esm for ts-node

* Add esm flag

* Change tsconfig properties

* Use tsx rather than ts-node

* Use tsx

* Remove ts-node

demo/index.ts

@@ -55,7 +55,7 @@ if (files.length === 0) {
     const filePath = path.join(dir, files[0]);
 
     console.log(`Running demo ${demoNumber}: ${files[0]}`);
-    const { stdout } = await $`ts-node --project demo/tsconfig.json ${filePath}`;
+    const { stdout } = await $`tsx ${filePath}`;
     console.log(stdout);
     console.log("Successfully created document!");
 }