Add support for interactive visualizations in jupyter-lab

[slabasan]

Dear Hatchet developers,

We discovered in Issue hatchet/hatchet#360 that the roundtrip-based interactive visualizations work in classic/legacy Jupyter notebook but do not currently work in Jupyer-lab. I observed this same behavior on my laptop and also at NERSC.

In classic Jupyter, this cell produces the expected output:

gf = ht.GraphFrame.from_literal(lit_graph)
%loadVisualization roundtrip_path lit_graph
``
But in Jupyter-lab, the same cell executes but nothing is displayed.

I would appreciate it if you could add support for interactive Hatchet visualizations Jupyter-lab (the default at NERSC).

If you need additional information please let me know.

Thank you very much,
Laurie