Suppress matplotlib or seaboarn incomplete figure output when using dihedrals workflow in Jupyter notebook

[cadeduckworth]

• https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.ioff.html#matplotlib.pyplot.ioff
• https://seaborn.pydata.org/generated/seaborn.catplot.html
• https://seaborn.pydata.org/generated/seaborn.violinplot.html
• https://stackoverflow.com/questions/18717877/prevent-plot-from-showing-in-jupyter-notebook