UI warning on failed serialization

[banesullivan]

Could the local vtk view have some sort of dismissable error popup, perhaps in the bottom corner, that lists the types of data that were unable to be serialized?

In PyVista, we suppress the warnings from VTK to avoid lengthy output in Jupyter:

pyvista/pyvista@c67a5ff

I wonder if in VtkLocalView, we could override that VTK logger and capture this error message:

https://github.com/Kitware/VTK/blob/af0878b870528596009fc9a627a8aa9b90917316/Web/Python/vtkmodules/web/render_window_serializer.py#L184

for the a better UI message directly with trame

[jourdain]

We should definitely help in that regard, but I will not force a UI onto the user within LocalView. Instead, provide some infrastructure so you can bring your own UI and handle the error your own way.