Lightning Viewer Example: Bug on Calculation of Time Duration

The bug exists in DistanceTimeLayer.qml, and the following lines:

92:  duration_ = (duration_ / 1000).toFixed(0);
93:  const dh = (duration_ / 3600).toFixed(0);
94:  const dm = ((duration_ % 3600) / 60).toFixed(0);
95:  const ds = duration_ % 60; 

In the line 94 when `(duration % 3600)`{} is more that {}30, then _dm is 1 and the text of time duration is 1m ago instead of for example 31s ago.

Solution: Instead of `.toFixed(0)` method `Math.floor(...)` should be used (also for dh and ds).