Moving to Ruff and pyproject.toml

[HarrisonWilde]

Not quite passing all tests but have switched fully to ruff and as a result ditched most of the other config files.

I cannot for the life of me get all tests to pass, because of weird issues in the makefile I have begun to address (This also fixes #203), one of which is the bug in the conda-remove step but now I cannot get the pre-commit hooks and install to work at the same time, seems to be some issue with conda on my system.

Main things to discuss before full PR are:

1. Resolving the issues w the tests (and we may want to add more at some point but for now these seem to work ok)
2. How precisely we want to use Ruff, you can see that I have pretty much kept in line with the old ways with a few changes like standard line length (88 from 80) and fewer ignores + standard isort, etc.

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Checklist:

• Updated documentation
• CI passes
• Labelled PR major/minor/patch

[HarrisonWilde]

Checks now pass here, but still not on my machine, would be good to figure this out as my setup is fairly standard iiuc.