Bluetooth - phone looses device

[AndrewAkinson]

This may be related to #223, it is made much more inconvenient by #223

When the DistoX goes out of bluetooth range/site. Something like going down a body size passage. The DistoX not only looses the connection, it appears to loose its pairing with the phone. So to continue surveying the DistoX has to be paired again. This, of course, only happens in the most miserable conditions.

It has to be said I cannot recreate this in my nice warm dry house, so really just open this issue as a place holder so if anyone else finds it more information can be added.

One thing that might be worth considering is having the connect screen available directly through one of the icons at the top, so the connection screen can be more easily checked while surveying. ST v 1.8.3 Android 14