Refactor type of icon_path in Game.__init__ docstring

Author: Natuworkguy

engine/core/__init__.py

@@ -422,7 +422,7 @@ def __init__(
             height (int): Window height in pixels. Defaults to 600.
             cursor_visible (bool): Whether the mouse cursor is visible. Defaults to True.
             fullscreen (bool): Whether to start in fullscreen mode. Defaults to False.
-            icon_path (Optional[str | Path]): Path to window icon image. Defaults to None.
+            icon_path (str | Path | None): Path to window icon image. Defaults to None.
             IS_EDITOR (bool): Whether running in editor mode. Defaults to False.
             GP_BASE_PATH (str): Base path for game assets