Upgrade storybook to v3 (#3558)

storybook/stories/loading_indicator.story.js

@@ -1,6 +1,7 @@
 import React from 'react';
 import { IntlProvider } from 'react-intl';
-import { storiesOf } from '@kadira/storybook';
+import { storiesOf } from '@storybook/react';
+import { action } from '@storybook/addon-actions';
 import en from 'mastodon/locales/en.json';
 import LoadingIndicator from 'mastodon/components/loading_indicator';