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/home_timeline/components/setting_text.js

@@ -8,11 +8,11 @@ class SettingText extends React.PureComponent {
     settings: ImmutablePropTypes.map.isRequired,
     settingKey: PropTypes.array.isRequired,
     label: PropTypes.string.isRequired,
-    onChange: PropTypes.func.isRequired
+    onChange: PropTypes.func.isRequired,
   };
 
   handleChange = (e) => {
-    this.props.onChange(this.props.settingKey, e.target.value)
+    this.props.onChange(this.props.settingKey, e.target.value);
   }
 
   render () {