Add drag events to Symbol

[pamtbaau]

Feature Description

Symbols can be marked as draggable and can be dragged around in the Map.

However, there is no option to add a callback to catch the dragging. I would love to see events like for example dragStart and dragEnd.

Describe alternatives you've considered

I've tried to add Features instead of Symbols, because there is a MapLibreMapController.onFeatureDrag.add(), but unfortunately, Features appear not to be draggable in the Map and the drag callback is never being called.

Additional context

No response