Legend values are not visible if field's name is too long

[breznak]

In the fields list on the right side we support mouse hover to show full name,
but in the legend the text is cropped and values are not visible for long names.

I'd suggest creating s function crop() (eg output like multistepBestPredictions:errorMetr_^) to limit the text in legend to given length, distinction should not be an issue as fields are color coded and full name can be read from the list on right.

The crop fn could be: 30chars + _ + random character

[jefffohl]

We should be able to handle this with CSS.

[breznak]

👍 way easier