fix: next build

Author: hyochan

next.config.js

@@ -1,7 +1,10 @@
-const withPWA = require('next-pwa')({
-  disable: process.env.NODE_ENV !== 'production',
-  dest: 'public',
-});
+const enablePWA = process.env.ENABLE_PWA === 'true';
+const withPWA = enablePWA
+  ? require('next-pwa')({
+      disable: process.env.NODE_ENV !== 'production',
+      dest: 'public',
+    })
+  : (config) => config;
 
 /** @type {import('next').NextConfig} */
 const nextConfig = {