Add Authentication Handling for Pages

[tylerminnis]

idk how to properly say this but

• each page needs to check if the user is signed in
• if not signed in, show error page with button to login
• auth0 role based access control (rbac) (apparently this is fucked up, ask dylan)

important because we're starting to access user's info and the app looks dumb asf when it fails to access profile pic/other stuff

[tylerminnis]

this actually can just be done in the router most likely