DragTargetEvent and DragTargetAcceptEvent properties annotation

[bioxakep]

In the process of implementing my mini-application, it was necessary to create a drag-target object. The linter started complaining that the event source (event.src_id) is a float, while the page.get_control() method expects an int as input. Upon closer examination, I discovered that src_id accepts string values ​​and that there is a typo in the implementation of the DragTargetEvent and DragTargetAcceptEvent classes.

`
class DragTargetAcceptEvent(ControlEvent):
def init(self, e: ControlEvent):
super().init(e.target, e.name, e.data, e.control, e.page)
d = json.loads(e.data)
warn(
f"{self.class.name} is deprecated since version 0.22.0 "
f"and will be removed in version 0.26.0. Use DragTargetEvent instead.",
category=DeprecationWarning,
stacklevel=2,
)
self.src_id: float = d["src_id"]
self.x: float = d["x"]
self.y: float = d["y"]

class DragTargetEvent(ControlEvent):
def init(self, e: ControlEvent):
super().init(e.target, e.name, e.data, e.control, e.page)
d = json.loads(e.data)
self.src_id: float = d["src_id"]
self.x: float = d["x"]
self.y: float = d["y"]
`

[ndonkoHenri]

Thanks, it will be adjusted.