Steps to reproduce the behavior:
- Have a project like this:

- Run pdoc like this:
pdoc(
"codefs",
"!codefs.core",
output_directory=Path("foo"),
)
Expected behavior
Docs don't mention ignored module at all.
Actual behavior
It still shows up in the submodules list, just not as a link.

Additional info
It correctly doesn't show up in the module index.
