chore: tweak external to improve startup

vite.config.mts

@@ -2,5 +2,27 @@ import next from 'next/vite';
 import { defineConfig } from 'vite';
 
 export default defineConfig({
-  plugins: [next()],
+  plugins: [
+    next({
+      plugins: [
+        {
+          name: 'config',
+          apply: 'serve',
+          config() {
+            return {
+              ssr: {
+                optimizeDeps: {
+                  include: [
+                    '@heroicons/react/24/outline',
+                    '@heroicons/react/24/solid',
+                  ],
+                },
+                external: ['date-fns', 'dinero.js'],
+              },
+            };
+          },
+        },
+      ],
+    }),
+  ],
 });