Document where Hatch puts files, all in one place

[pfmoore]

In addition to the project directory, I believe hatch puts files in various places - the environments it creates, the Python versions it downloads, etc. It would be useful to have a complete list of places hatch puts files[^1] in a single page in the documentation, to aid in cleanly uninstalling hatch if needed, as well as allowing users who prefer to keep files in custom locations to know exactly what needs to be changed.

At the moment, to get this information, it's necessary to search through the docs, and there's no way to be sure you didn't miss something.

[^1]: Including links to the relevant config files that let you change those locations.