Show location accuracy

Currently, FMD only provides the coordinates of the location, but nothing about the accuracy. This means provided locations could be absolutely inaccurate to the point of uselessness, or perfectly accurate to the limits of the device's GPS with not much of a way to differentiate, especially when FindMyDevice doesn't wait long enough for more accurate locations potentially.

While FindMyDeviceServer lists the type of location like whether it is from network, fused, gps, etc., even GPS can be inaccurate indoors, and Wi-Fi based location with Mozilla's retired and inaccurate MLS is functionally useless for things like FMD (low location accuracy, and in my experience, just being completely off even with the large location inaccuracy).