Add Next.js project files for SPA with image optimization

nextjs/spa-with-image-optimization/next.config.mjs

@@ -0,0 +1,10 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+    output: 'export',
+    images: {
+        loader: 'custom',
+        loaderFile: './loader.js',
+    },
+};
+
+export default nextConfig;