Double scale for power / HR

feature-request

#1

There seems to be the same Y-axis scale for Power and HR monitoring in the app.
This is fine for monitoring 200W at 180bpm. But when there is a larger differences like 300W at 150bpm this doesn’t give much resolution for viewing HR variations. Could we have a scalable dual Y-axis (both configurable for max sprint power and max HR), either by default or as an option?