disable webpack5 for building

frontend/next-env.d.ts

@@ -1,2 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/types/global" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/basic-features/typescript for more information.

frontend/next.config.js

@@ -5,12 +5,12 @@ const withTM = require('next-transpile-modules')
   ])
 
 module.exports = withTM({
-  webpack: config => {
+  webpack5: false,
+  webpack: (config, options) => {
     config.module.rules.push({
       test: /react-spring/,
       sideEffects: true,
     })
-
     return config
   },
 })