revert all changes in package-lock and webpack-lock

Author: KeHang-Zhu

frontend/package-lock.json

@@ -83,6 +83,9 @@ export default (
       new webpack.ProvidePlugin({
         process: 'process/browser',
       }),
+      new webpack.ProvidePlugin({
+        Buffer: ['buffer', 'Buffer'],
+      }),
     ],
     resolve: {
       extensions: ['.tsx', '.ts', '.js'],
@@ -119,4 +122,4 @@ export default (
     // enable external sourcemaps in prod, for debugging
     devtool: isProd ? 'source-map' : 'eval-source-map',
   };
-};
+};