[Design/Routes] Welcome Screen / Initial Setup (#42)

* feat(new component): welcome screen and initial setup component

* feat(frontend): setup with login, settings, radarr/sonarr

* feat(frontend): add login functionality to login step for setup

Co-authored-by: Alexander Zoitos <azoitos1@gmail.com>

src/pages/setup.tsx

@@ -0,0 +1,9 @@
+import React from 'react';
+import { NextPage } from 'next';
+import Setup from '../components/Setup';
+
+const SetupPage: NextPage = () => {
+  return <Setup />;
+};
+
+export default SetupPage;