[REQ] Use Volume buttons for manually changing speed

[rafaelmartinsrm]

Is your feature request related to a problem? Please describe. I am currently using QZ for running since my treadmill doesn't have Bluetooth feature. I also don't have a foot pod. I am currently running using QZ Companion application on my Garmin watch and I change speed and inclination on my treadmill manually. Although it's working great, changing speed using the UI buttons on tiles is hard when you are running, also because it has "delay", so you end up clicking more than once sometimes. My idea to solve this problem is using the volume buttons on the phone to change the speed up and down.

Describe the solution you'd like Volume buttons should manually set the speed according the the "step" defined on settings.

Describe alternatives you've considered Having huge buttons on UI to change speed would also work, although volume buttons seems perfect solution.

Additional context None