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

app/javascript/mastodon/features/report/components/status_check_box.js

@@ -10,7 +10,7 @@ class StatusCheckBox extends React.PureComponent {
     status: ImmutablePropTypes.map.isRequired,
     checked: PropTypes.bool,
     onToggle: PropTypes.func.isRequired,
-    disabled: PropTypes.bool
+    disabled: PropTypes.bool,
   };
 
   render () {