[BUG] Workout time not incrementing when SS2K companion app is running in the background iOS

[jhalupnik]

Description

The workout time quits incrementing on iOS companion app when accessing another iOS app, sending SS2K app to the background. ERG mode continues to work as expected.

Steps to reproduce

1. Begin ERG workout on iOS companion app connected to SS2K
2. During workout, access a different app on the iOS device (I clicked on an email notification that I received). Take note of the workout time. e.g.1:10
3. Remain in the secondary app for a period of time, taking note that ERG mode continues to adjust resistance to maintain the same power output
4. Return the the running SS2K app on the iOS device
5. The workout time will be 1:10-1:11 regardless of the time spent in the secondary app
6. The workout time then begins to increment as normal and the workout continues on.

Expected behavior
Workout time continues to increase when the app is running in the background.

Actual behavior
The workout time pauses while the app isn't the top level app and begins again when the app is accessed.

Additional Information

I was in a particularly painful workout where every second was difficult, I got a work email that I needed to respond to so I spent a few minutes writing an email back, when I returned to the app only one second had passed. I was on the "Just Ride" workout on my Peloton so I was able to see the 3+ minute time difference between the Peloton Time Elapsed and the Workout Time on the SS2K companion app.