Add pre-commit hooks

[brosaplanella]

Set up pre-commit hooks for

• [ ] Style (black + ruff)
• [ ] Clear notebooks output

(please feel free to suggest more)

[agriyakhetarpal]

Some good ones are:

• https://github.com/drillan/jupyter-black for autoformatting notebooks, or the better one:
• https://github.com/nbQA-dev/nbQA contains both nbqa-black and nbqa-ruff
• https://github.com/codespell-project/codespell to catch typos and spelling errors