migrate ui-components from flow to typescript

scm-ui/ui-components/src/forms/Checkbox.stories.tsx

@@ -0,0 +1,21 @@
+import React from "react";
+import { storiesOf } from "@storybook/react";
+import Checkbox from "./Checkbox";
+import styled from "styled-components";
+
+const Spacing = styled.div`
+  padding: 2em;
+`;
+
+storiesOf("Forms|Checkbox", module)
+  .add("Default", () => (
+    <Spacing>
+      <Checkbox label="Not checked" checked={false} />
+      <Checkbox label="Checked" checked={true} />
+    </Spacing>
+  ))
+  .add("Disabled", () => (
+    <Spacing>
+      <Checkbox label="Checked but disabled" checked={true} disabled={true} />
+    </Spacing>
+  ));