use reflow to migrate from flow to typescript

scm-ui/ui-components/src/Loading.stories.tsx

@@ -0,0 +1,9 @@
+import React from 'react';
+import { storiesOf } from '@storybook/react';
+import Loading from './Loading';
+
+storiesOf('Loading', module).add('Default', () => (
+  <div>
+    <Loading />
+  </div>
+));