suggested init params handling from Patrick

Author: cpparts

src/ipyaladin/widget.py

@@ -221,13 +221,12 @@ def __init__(self, *args: any, **init_options: any) -> None:
         # https://github.com/jupyter-widgets/ipywidgets/blob/main/python/ipywidgets/ipywidgets/widgets/domwidget.py
         for key in ["layout", "tabbable", "tooltip"]:
             init_options.pop(key, None)
-        if "north_pole_orientation" not in init_options:
-            init_options["north_pole_orientation"] = init_options.get("rotation", 0)
-        else:
-            init_options["rotation"] = init_options["north_pole_orientation"]
+        init_options["north_pole_orientation"] = init_options.get(
+            "north_pole_orientation", init_options.get("rotation", 0)
+        )
         # some init options are properties here
         self.height = init_options.get("height", self._height)
-        self.rotation = init_options.get("rotation", self._rotation)
+        self.rotation = init_options.get("north_pole_orientation", self._rotation)
         self.target = init_options.get("target", self._target)
         self.fov = init_options.get("fov", self._fov)
         # apply different default options from Aladin-Lite