Work on the admin/staff dashboard as seen on the figma. Note that the table showing the staff/volunteers/veterans is reused for both admin dashboard and staff dashboard. This should be the home page when someone logs in, and will display the admin view if they are an admin, and the staff view if they are a staff. For now, you can just have two different routes, maybe /adminview, /staffview, and we can worry about login logic later. You should fetch and populate the table from the mongo database (this part is blocked until backend is done but should be ready soon).