Yamlfix

Fix

- allow fix_files to read paths to files as arguments
- allow fix_files to read paths to files as arguments

Feat

- use pdm as package manager
- use pdm as package manager

Fix

- fix types of pre-commit-hooks

Feat

- don't overwrite files if content is not modified. Closes 142.

Fix

- support comments in the middle of a string

Fix

- Moved shebang skipping code to fix_code instead of fix_files. Closes 123