Routes like /patient/:index aren't stable when dataset changes

[the-kenny]

Hello,

I'm playing around with the demo and looking at the implementation. One thing I've notices is that you're using index-based URLs to display patient-details. This is problematic when the underlying dataset changes.

1. I search for "von" and click on the third patient in the result
2. I get redirected to /patient/2
3. Another Patient with "von" in its name is added
4. At some later point, I reload the page. I may or may not see a different patient's details because the new patient may or may appear in the search results before the patient I was originally looking at.

A solution would be changing your routing to link to /patient/:id where :id is Patient.id.