Setup a new admin layout

[shivankacker]

Setup a base layout for /admin.
Add a sidebar containing links for /admin (dashboard), and / (chat)
Try to reuse the current sidebar component.
Be sure to include the logout button

If the user does not have superuser access (which you can check through the storage atom), do not render the children or sidebar, but render a message saying you need super user access, and a link to go back to home page.