Allow new risk profile of "close contact with covid case"

[hkrsmk]

Is your feature request related to a situation you're trying to understand with microCOVID? Please describe.
I had a group outing with friends where one of them was tested positive for covid the day after we hung out. He was still negative when we hung out.

The one who tested positive on the day after was technically only a "close contact with covid case" during the time when we hung out, and not a confirmed case. Perhaps that will make a difference in the risk calculation?

Describe the solution you'd like
Add a selection for "Close contact with covid case in the past 14 days", maybe having about a risk of 150,000 microCOVIDs (similar to my calculated risk of being in contact with the covid case).