Add pre-commit hooks for Jupyter notebooks

**Is your feature request related to a problem? Please describe.**

The current pre-commit hooks work very well on the source files, however they don't currently format Jupyter notebooks. We should add a pre-commit hook to handle this.

**Describe the solution you'd like**

`nbQA` is the standard. It offers `mypy`, `flake8`, and `black` on top of a lot of other options customized for Jupyter notebook.

**Additional context**

For our pure Python repos, `nbQA` would be a good option to add as well.