Bad label positioning in pie-charts

[matinh]

Depending on the number of categories and the amount of text in labels, the positioning of labels in pie-charts might be unsatisfying. The labels might overlap the title/subtitle. Here is an example image showing the problem:

This codepen contains relevant code for reproducing the issue.

There is also a related issue, which suggests adding an optional space between title and plot. But as this space would definitively depend on the actual data, I'd say plotly should handle this for the user automatically.