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/account_gallery/components/media_item.js

@@ -6,7 +6,7 @@ import Permalink from '../../../components/permalink';
 class MediaItem extends ImmutablePureComponent {
 
   static propTypes = {
-    media: ImmutablePropTypes.map.isRequired
+    media: ImmutablePropTypes.map.isRequired,
   };
 
   render () {
@@ -34,6 +34,7 @@ class MediaItem extends ImmutablePureComponent {
       </div>
     );
   }
+
 }
 
 export default MediaItem;

app/javascript/mastodon/features/account_gallery/index.js

@@ -5,7 +5,7 @@ import PropTypes from 'prop-types';
 import {
   fetchAccount,
   fetchAccountMediaTimeline,
-  expandAccountMediaTimeline
+  expandAccountMediaTimeline,
 } from '../../actions/accounts';
 import LoadingIndicator from '../../components/loading_indicator';
 import Column from '../ui/components/column';