computer analysis chart could use yaxis ticks and labels

[rugvedpund]

Would it be useful to add ticks and labels to the y-axis of the computer evaluation chart?

Currently the Request Computer Analysis button displays an evaluation chart without any y-axis, unless you hover on it with a mouse.

I would be happy to create a small PR that adds a y-axis to the chart if there's interest

[Rabergsel]

I can actually support this. Although I wouldn't now how you would visualize something like mate in 3, 2, 1 or something, as those aren't really numerical values.

Also, I would consider a logarithmic scale...