Improve eslint rules (#3147)

* Add semi to ESLint rules

* Add padded-blocks to ESLint rules

* Add comma-dangle to ESLint rules

* add config/webpack and storyboard

* add streaming/

* yarn test:lint -- --fix

config/webpack/loaders/babel.js

@@ -3,6 +3,6 @@ module.exports = {
   exclude: /node_modules/,
   loader: 'babel-loader',
   options: {
-    forceEnv: process.env.NODE_ENV || 'development'
-  }
-}
+    forceEnv: process.env.NODE_ENV || 'development',
+  },
+};