Possible improvements for the Jupyter Widget Integration

[jakublala]

These are some of the feature improvements that could be implemented to the widget:

• Add support for Jupyter Lab
• Add an alignment option (i.e. button) that can change the horizontal layout (map on the left, viewer on the right) to a vertical layout (structure on the top, map on the bottom) so that both the map and the viewer become bigger
• Fix the Plotly resizing 'hack' that makes the property map jump once inserted into the output window
• Check and fix all the CSS styling (also given in Jupyter Widget HACKS explained and to be fixed #190)
• Fix the info property table not displaying properly (.chsp-info-table in CSS was the fix originally, but it stopped working)