Suggestions commit seem not to have/enforce pre-commit hooks

[spjuhel]

While working on #1254 I applied via the "apply suggestion" button thingy the suggestions from @peanutfun.
(These brought some corrections to some docstrings in coordinates.py. )

The pre-commit hook for formatting complained that some format was incorrect, and indeed indentation was wrong by one space.

This is not really an issue, but it took me a few minutes to understand the problem, so I thought I'd share.

[peanutfun]

Correct, applying suggestions might mess up the formatting. We could switch to pre-commit CI, which would automatically format pull requests by adding commits via a bot (which might be equally confusing for non-expert devs) https://pre-commit.ci/

PS: Indeed, commits on GitHub do not adhere to the pre-commit hooks. These hooks are a completely local thing. And without pre-commit installed, you are still able to commit without the hooks checking your code.