update .gitignore in the generated package

[fdiblen]

Checklist before submitting an issue

• I have checked the existing issues and couldn't find an issue about this bug.

Issue details

• .gitignore
  • change .swp to *.swp
  • more entries are probably needed, check https://github.com/github/gitignore/blob/main/Python.gitignore for inspiration

_Originally posted by @OleMussmann in #554