Make the Node.js tsconfig.json more like the Vite starter

The way Vite loads TypeScript config files seems to work more like this
than like regular Node.js resolution. I'm not sure exactly what they do
under the hood, but this is how their starter template is configured,
and in another project that uses Tailwind with a TypeScript config I had
actual complaints from VS Code with the node16 settings (though no
complaints from Vite).

client/tsconfig.node.json

@@ -2,7 +2,7 @@
   "include": ["vite.config.ts"],
   "compilerOptions": {
     "composite": true,
-    "module": "node16",
-    "moduleResolution": "node16"
+    "module": "esnext",
+    "moduleResolution": "bundler"
   }
 }