use reflow to migrate from flow to typescript

scm-ui/ui-components/src/HelpIcon.tsx

@@ -0,0 +1,15 @@
+import React from 'react';
+import Icon from './Icon';
+
+type Props = {
+  className?: string;
+};
+
+export default class HelpIcon extends React.Component<Props> {
+  render() {
+    const { className } = this.props;
+    return (
+      <Icon name="question-circle" color="blue-light" className={className} />
+    );
+  }
+}