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/components/autosuggest_textarea.js

@@ -44,11 +44,11 @@ class AutosuggestTextarea extends ImmutablePureComponent {
     onKeyUp: PropTypes.func,
     onKeyDown: PropTypes.func,
     onPaste: PropTypes.func.isRequired,
-    autoFocus: PropTypes.bool
+    autoFocus: PropTypes.bool,
   };
 
   static defaultProps = {
-    autoFocus: true
+    autoFocus: true,
   };
 
   constructor (props, context) {
@@ -57,7 +57,7 @@ class AutosuggestTextarea extends ImmutablePureComponent {
       suggestionsHidden: false,
       selectedSuggestion: 0,
       lastToken: null,
-      tokenStart: 0
+      tokenStart: 0,
     };
     this.onChange = this.onChange.bind(this);
     this.onKeyDown = this.onKeyDown.bind(this);
@@ -164,7 +164,7 @@ class AutosuggestTextarea extends ImmutablePureComponent {
 
   onPaste (e) {
     if (e.clipboardData && e.clipboardData.files.length === 1) {
-      this.props.onPaste(e.clipboardData.files)
+      this.props.onPaste(e.clipboardData.files);
       e.preventDefault();
     }
   }