Standardize the Y-axis on charts for easier comparison

[frhino]

Is your feature request related to a problem? Please describe.
Dynamic scaling in our chart components provides for consistently beautiful charts for when looking at counties individually, but if I want to compare one county to another, the dynamic scaling is deceptive.

Describe the solution you'd like
When I select a county from the dropdown picker, I want the chart scale to maintain the same scale, so that visual representations are consistent. This becomes necessary if we implement "per 10K" displays.

Describe alternatives you've considered
None

Additional context