fix: Remove unneeded Off

Author: AlejandroFernandezLuces

src/ansys/tools/visualization_interface/backends/pyvista/widgets/screenshot.py

@@ -68,12 +68,10 @@ def callback(self, state: bool) -> None:
         It is called every time the screenshot widget is clicked.
         """
         for widget in self.plotter._widgets:
-            widget._button.Off()
             widget._button.GetRepresentation().SetVisibility(0)
         self._plotter._pl.scene.render()
         self.plotter._pl.scene.screenshot("screenshot.png")
         for widget in self.plotter._widgets:
-            widget._button.Off()
             widget._button.GetRepresentation().SetVisibility(1)
         self._plotter._pl.scene.render()