User will be redirected appropriately from QR code URL

[francisli]

The URLs currently generated into QR code are of the form:

[Base URL]/patients/[UUID of Patient]

On our dev environment, that will be something like:

https://dev.sflifeline.app/patients/9218c081-79f4-4649-b7b1-848ab23f14ea

When visiting this URL:

1. If a user is not logged in, redirect to login for authentication (which will redirect back after successful auth)
2. If a patient record exists, display the record- all user types, Admin/Staff/Volunteer/First Responder can view a Record
3. If a patient record does NOT exist, and the user is an Admin/Staff/Volunteer, then redirect to the creation/editing interface (currently /admin/patients/register/[UUID])
4. If a patient record does NOT exist, and the user is a First Responder, then show an appropriate message.