Hover events on the lines themselves

A dash community user brought this up https://community.plot.ly/t/linking-scattermapbox-lines-to-other-data-with-callbacks/5449

They would like some type of event be fired when hovering over lines instead of just points:

I would also like to raise an appeal for maps of lines being treated as actual lines rather than collections of points. It seems like the callbacks are only firing above the component points, rather than over the line itself, which is confusing to an end user.

Comienza rastreando el manejo del hover de scattermapbox y la ruta de su evento de callback; el issue no identifica archivos ni pruebas específicos. Compara el comportamiento existente de point-hover con el comportamiento solicitado de line-hover, y considera el trabajo completo cuando al pasar el cursor sobre una línea se pueda disparar un evento, en lugar de que solo sea posible al pasar el cursor sobre sus puntos componentes.