Aim/Problem: Improve the docstrings in all the python files in the codebase. This will also fulfill the prerequisite for the lint check Check to enforce use of Args, Returns and Raises in the docstring. to be introduced for #8423.

Suggested fix: Do a grep or a search (CTRL+F) for def keyword in the file to get all the possible places that we would need to fix. Verify that the

When a user has a version of gradebook.db that has not been upgraded to the latest version,
Formgrader will hang when it tries to open the database file.
The error is only visible in the log output and not propagated to the web interface.

There is an Autolab dark theme PR which allows each individual user to set whether they want the default Autolab theme, or the dark theme: autolab/Autolab#1139

This is a very promising PR but there are some issues with it which needs to be resolved before it can be merged.

1. Certain aspects of the light theme (the handin-panel, the font colors and type, the handin ta

git-cz serves the purpose here.