do not mangle classnames :( increases buildsize

package.json

@@ -66,6 +66,7 @@
     "react-dev-utils": "^6.1.1",
     "redux-mock-store": "^1.5.1",
     "style-loader": "^0.22.1",
+    "terser-webpack-plugin": "^1.2.1",
     "webpack": "^4.27.1",
     "webpack-cli": "^3.1.2"
   }

webpack.config.js

 const path = require('path');
+const TerserPlugin = require('terser-webpack-plugin');
 const paths = require('./config/paths');
 
 const eslintLoaderConfig = {
@@ -80,5 +81,14 @@ module.exports = [
           ],
         }],
     },
+    optimization: {
+      minimizer: [
+        new TerserPlugin({
+          terserOptions: {
+            mangle: false,
+          },
+        }),
+      ],
+    },
   },
 ];