Support pin dropping in location sharing
The location sharing popover allows dragging around the map, but the pin sticks to the autodetected spot. This is inconvenient for several reasons: I might want to share a location that is not where I am (“this is where you need to go”) or I might want to tweak my location to a less accurate one for privacy (“I live close to that bus stop”).
I suggest that a simple click should move the pin to the point where the click happened, but dragging-and-dropping the existing pin should probably also work.