Customization and priority of contact card display on maps via settings (may be willing to pay)

MAY BE WILLING TO PAY TO GET THIS DONE

Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like
The ability to add and customize contact details for both the hover-over as well as the click-event contact cards on the map. I'm looking for lots of flexibility with what goes in here and how it's displayed. I'd also like to set priority of data sources (i.e. contact card data would be displayed first followed by data obtained via forward geocoding).

The ability to update notes inside of the click-event contact bubble would be a huge plus.

Describe alternatives you've considered
I tried doing this myself and while I've successfully implemented other changes (like alternative geocoding/json parsing via Pelias) to Maps, I can't (and don't have time to) figure out how and where contact card fields are passed to Vue. I have a dev environment that I'm trying to do this in but I figured I would request this here as well. It seems like a simple change for the basics of what I'm looking for.

Additional context
Here's a sample of what I'm trying to do:

Contact Hover-Over:

Contact Click:

No file or test is named in the issue. Start by tracing how contact-card fields reach the Vue map UI, covering both hover-over and click-event cards. Done should include configurable contact details, source priority over forward-geocoded data, and editable click-event notes.