Merge in webpack config

Author: dmt0

.storybook/main.js

@@ -1,3 +1,13 @@
+const path = require('path');
+
 module.exports = {
   stories: ['../src/__stories__/index.js'],
+  webpackFinal: async ({config}) => {
+    config.module.rules.push({
+      test: /\.scss$/,
+      use: ['style-loader', 'css-loader', 'sass-loader'],
+      include: path.resolve(__dirname, '../'),
+    });
+    return config;
+  },
 };