Make time tick labels more readable

[nathanshammah]

metriq time labels has a lower readability than PWC (snapshot below). I propose:

• to remove months
• to make font a bit more in bold and bigger
• to make it appear horizontal instead of sideways (eliminating month stamp we save up space)

[WrathfulSpatula]

There is more to be done, here. However, first I want to note is that the time ticks are "responsive" to the time range of the results themselves presented on the chart.

This is how we've configured the x-axis scale:

Chart.js looks at the width of the time domain between earliest and latest result, and it "responsively" picks the interval that it deems to be best, partially for its closeness to the requested "tick" count. We could reduce the tick count, and this might encourage Chart.js to choose "year" ticks over "quarter" ticks, (or longer unit scales over shorter unit scales, in general). However, some of the tasks might only have results across about a year in total, hypothetically, in this research domain!

Framing it that way, how many ticks would you like on the chart? That might be the best first pass, at the original intent of this issue.