Migrate server setup functionality

Changes:
- Check if admin is set up
- Redirect to admin setup if not already done
- Create admin password
- Login as admin and get access token for future requests
- Add a router for setup
- Middleware to prevent any route from being accessible on the server till the admin setup is done

GitLab: #80
GitLab: #73

Change-Id: I8b7ecab68f6b4d5c6313ce2e72a4ae4fdef9eda0
diff --git a/client/src/pages/Setup.tsx b/client/src/pages/Setup.tsx
new file mode 100644
index 0000000..28aee3b
--- /dev/null
+++ b/client/src/pages/Setup.tsx
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2022 Savoir-faire Linux Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this program.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+import { Button } from '@mui/material';
+import { useTranslation } from 'react-i18next';
+import { Navigate, useNavigate } from 'react-router-dom';
+
+import LoadingPage from '../components/Loading';
+
+export default function Setup() {
+  const { t } = useTranslation();
+  const navigate = useNavigate();
+
+  const accessToken = localStorage.getItem('adminAccessToken');
+
+  const adminLogout = () => {
+    localStorage.removeItem('adminAccessToken');
+    navigate('/login');
+  };
+
+  if (!accessToken) {
+    return <Navigate to="/login" replace />;
+  }
+  return (
+    <>
+      <Button variant="contained" type="submit" onClick={adminLogout}>
+        {t('logout')}
+      </Button>
+      <LoadingPage />
+    </>
+  );
+}