* Stylish Haskell: Parse issues
* CPP language extension
* Manually fix some files with duplication
* Pre-commit: Fix ignored files
It looks like `ExactPrint` was ignored before, but since absolute paths
are used and weren't adapted it wasn't ignored afterwards.
* Fix pre-commit-hook to work with GHCIDE codes
pre-commit does not load stylish-haskell configuration in
subdirectories. As an imperfect workaround, this commit unifies
all stylish-haskell into a single top-level config.
* Update CONTRIBUTING.md
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>