feat(tools): create ui-components package and setup Storybook (#41920)

* feat(client): basic Storybook setup

* Revert "feat(client): basic Storybook setup"

This reverts commit f55e249326.

* feat(tools): create ui-components package and setup Storybook

* Add ui-components to lerna.json

tools/ui-components/.storybook/theme.js

@@ -0,0 +1,8 @@
+import { create } from '@storybook/theming';
+
+export default create({
+  base: 'light',
+  brandTitle: 'freeCodeCamp.org',
+  brandImage:
+    'https://cdn.freecodecamp.org/platform/universal/fcc_secondary.svg'
+});