Ability to open location share in a real mapping app.

### Your use case

#### What would you like to do?

When folks share location with me, I want to view it in something like Google Maps or Apple Maps so I can do stuff like search for nearby locations, ask directions for how to get to the location, etc. Instead, I have no way to actually access the location data itself short of View Source on the event(!).

As a first cut, exposing the geo URI would be better than nothing - or providing some "open in..." links on the expanded map viewer.

### Have you considered any alternatives?

_No response_

### Additional context

_No response_