[Enhancement]: Radar Chart: Add Possibility to display labels for all spokes

[max-jonas]

Hi together,

Currently the radar chart will always display only labels for the most inner and most outer spoke (i.e. min and max value).
However, we identified some use case, where it would be helpful, if the labels (values) would be displayed for each spoke, especially for example radar charts that have quite small ranges (0 to 3 or 4).

We would highly appreciate an extension of the RadarOptions to include some boolean flag that indicates wheter only min/max or all labels should be displayed. Something like showAllLabels?: boolean ?

I already prepared a Draft Pull Request (#2014 ) how this could be implemented. Would love to hear your feedback on this and continue working on it, if there is the chance that this feature could be added.

Thanks a lot for your great work and kind regards,
Max

Edit: If there is a use case, where it would make sense to have no labels at all, I could also extend the PR to use an enum instead of a boolean and add the 'no-labels'-option.