Add option to disable volume for LiveRide

[mvl22]

User request:

I really like using the live ride feature but I often just use the main app because the live ride is too loud if I am listening to other audio. I have tried installing an app that allows you to control audio from apps individually but it doesn't work because it just adjusts the overall media volume while that app is in use.

Is a setting to disable all audio from live ride not possible? Another work around would be to disable all navigation notifications. I generally don't need navigation aid I just want to see me moving on the map.

NB See also #425.

[HilaryN]

If s/he just wants to see location / movement on the map without needing to see any navigation instructions then this should be possible without turning on LiveRide, by using the location button in the bottom right-hand corner.

Would need to turn off the phone's screen lock though.