cli-clock tweaks

With the firmware update, I could be wrong here but I think it may only be if you have one of the cutting edge builds. I think 2v10 would be ok.

But... I'm planning on pushing a 2v11 release soon. The only thing that's stopping me is a build failure for microbit1 because the firmware has got too big now - when I get some time to sort that out we;ll be good

If you want heart rate you should use a different App etc.

I think that's probably a good idea, yes.

In Bangle 2 - I think the way this should work is swipe left / right

That could be a good idea, yes. Could swipe left/right not be used for Bangle.js 1 as well.