fixup! Add a web widget for divider

web/src/toga_web/widgets/divider.py

@@ -13,11 +13,30 @@ class Divider(Widget):
     HORIZONTAL = Direction.HORIZONTAL
     VERTICAL = Direction.VERTICAL
 
+    def __init__(
+        self,
+        interface,
+    ):
+        """Create a new divider line.
+
+        Inherits from :class:`base.Widget`.
+
+        :param id: The ID for the widget.
+        :param style: A style object. If no style is provided, a default style will be
+            applied to the widget.
+        :param direction: The direction in which the divider will be drawn. Either
+            :attr:`~toga.constants.Direction.HORIZONTAL` or
+            :attr:`~toga.constants.Direction.VERTICAL`; defaults to
+            :attr:`~toga.constants.Direction.HORIZONTAL`
+        """
+        super().__init__(interface=interface)
+
+        # Set direction of the divider.
+        self.interface = interface
+
     def create(
         self,
-        direction: Direction = HORIZONTAL,
     ):
-        self._direction = direction
         self.native = self._create_native_widget("sl-divider")
 
     def get_direction(self):
@@ -27,7 +46,8 @@ def set_direction(self, value):
         self._set_value("direction", value)
 
     def _get_value(self):
-        return self._direction
+        return self.interface.direction
 
     def _set_value(self, attr, value):
-        self._direction = value
+        pass
+        # self.interface.direction = value