refactor: ✨ ruff rules enabled and fixed and code refactor made

[onuralpszr]

Description

I added "ruff" formatting rule to be enabled (https://docs.astral.sh/ruff/rules/#ruff-specific-rules-ruf)

References

https://peps.python.org/pep-0448/ https://docs.astral.sh/ruff/rules/unnecessary-iterable-allocation-for-first-element/

[github-actions[bot]]

Preview

Preview and run these notebook edits with Google Colab:

• demo.ipynb

Rendered notebook diffs available on ReviewNB.com. If commits are added to the pull request, synchronize your local branch: git pull origin formatting/ruff-rules

[LinasKo]

Thanks @onuralpszr! Merging.