Bar diagram instead of graph for the Sleep duration

[pipiche38]

The problem

In the sleep duration trend, today we have a graph which display each night sleep duration. I feel that it would be more convenient if the display is done using bar diagram, instead of a graph.

The idea

Change the graph by a bar histogram

Alternatives you've considered

Leave it like it is

Additional context

Mockups, links to relevant protocol notes, or anything else that helps.

[HugoPodworski]

I personally quite like the current sleep tab on IOS. Maybe create a mockup on this PR to show how it would look with a Bar Graph

[pipiche38]

@HugoPodworski I have updated the initial post, color could be reviewed of course, but the idea is when we have a night not tracked it doesn't create a strange view on the graph. The bar are much more concreate

[pipiche38]

And BTW, based on the different sleep phase per day, the bar diagram could be align, and you can see in one shoot how your deep sleep, REM ... evolve during the days

[digitalerdude]

Opened a PR for this: digitalerdude#7 — switches the Sleep tab's "Hours asleep" trend to a bar chart using the shared TrendChart's existing (previously unused) bar mode. Isolated to this one chart.