Achieving feature parity between plotly and pyvista plotters

[RobPasMue]

Let's see if it is possible to add all the missing functionalities to the Plotly plotter. It would be good to list all the missing widgets here and create sub issues for each of them @AlejandroFernandezLuces

Let's keep it reasonable as well. If some of them can't be implemented, that's fine.

[AlejandroFernandezLuces]

Features already included by default in Plotly:

• Camera rotation.
• Reset to isometric view (or last save).
• Camera panning. I think this was what we actually wanted in PyVista.
• Screenshot button and HTML export.