fix(website): hack next-mdx-remote with vite config (DEV only) (#779)

Hmm, this is going to be a big problem with ESM/CJS compat...

Maybe related: #421, #428

packages/website/vite.config.ts

@@ -0,0 +1,13 @@
+/** @type {import('vite').UserConfig} */
+export default ({ mode }: { mode: string }) => {
+  if (mode === 'development') {
+    return {
+      ssr: {
+        optimizeDeps: {
+          include: ['next-mdx-remote/rsc'],
+        },
+      },
+    };
+  }
+  return {};
+};