This PR updates the extension to work with Jupyter Lab 1.0. Updates include:
minor changes to code and functions calls related to JupyterLab.
updated the docker image
updated selenium tests and locators to match refactored elements
updated utility functions to not require the command registry as a parameter
a signal for when a cell is run is now used instead of polling the kernel for state changes. Improves the reliability of updating variables automatically and simplifies the overall logic needed.
This PR updates the extension to work with Jupyter Lab 1.0. Updates include: