Complete automated tests of all documented features

[SimonBiggs]

Investigate how JupyterLab achieves its testing. Implement tests that will help the code base simplification refactor.

Once the code base has been simplified step through and test the resulting parts piece by piece.

[SimonBiggs]

For now just focusing on tests based around the documented features. Confirming that all documented features work, as documented.

Tests currently check each of the sections, and the watchdog form template update feature.

Need to write tests for each of the variable sections.