Wrong position tooltip rendered at

Hello,

I'm using Python 3.13.0 and pygal 3.0.5.

When rendering a HorizontalLine(), I found the tooltip rendered not where it should be in the HorizontalLine(), but where it should be in the y-inversed Line(). I think it need to be solved.

Reproduce the issue with Python 3.13.0 and pygal 3.0.5 using a HorizontalLine(), then compare its tooltip position with the y-inversed Line() behavior described. Done means the HorizontalLine() tooltip renders at its correct position rather than at the position used by the y-inversed Line().

Written by the indexing model from the issue text.