Support partial as EventHandlerFunction

Author: masipcat

src/reactpy/core/events.py

@@ -3,7 +3,7 @@
 import dis
 import inspect
 from collections.abc import Callable, Sequence
-from functools import lru_cache
+from functools import lru_cache, partial
 from types import CodeType
 from typing import Any, Literal, cast, overload
 
@@ -107,6 +107,9 @@ def __init__(
         while hasattr(func_to_inspect, "__wrapped__"):
             func_to_inspect = func_to_inspect.__wrapped__
 
+        if isinstance(func_to_inspect, partial):
+            func_to_inspect = func_to_inspect.func
+
         found_prevent_default, found_stop_propagation = _inspect_event_handler_code(
             func_to_inspect.__code__
         )