Update notebooks/documentation to demostrate floating map widget config

[atmorling]

Per @walljcg's comments on #189

[walljcg]

This notebook is currently failing: https://github.com/wildlife-dynamics/ecoscope/blob/master/notebooks/04.%20EcoMap%20%26%20EcoPlot/EcoMap.ipynb

at the line:

from lonboard.colormap import apply_categorical_cmap, apply_continuous_cmap