Summary

Fix typos discovered by codespell

• https://pypi.org/project/codespell

Add pre-commit for runningcodespell andruff on all code changes.

• https://pre-commit.com

- Loding  the equivelent dependancy to accodomate  prefered  seperators is unwieldly.+ Loading the equivalent dependency to accommodate preferred separators is unwieldy.

Checklist

• I understand that this PR may be closed in case there was no previous discussion. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.