Yamlfix

Feat

- **adapters.py**: Add section whitelines

Fix

- **adapters.py**: Fix behavior for section whitelines at the end of the document

Fix

- compare sequence_style with proper (enum) type and add more tests

Feat

- make space after comment start and spaces before inline-comment configurable

Fix

- comment fix was only applied to yaml source before ruyaml ran, not after, which missed some comment fixes after block/flow style conversions
- issues with flow-style inline-comments

Feat

- add use-case / check workaround for issue 188
- add quotations to simple list values as well
- make yamlfix configurable with sane default values

Fix

- correct wrong wording in 'allow_duplicate_keys' docs and set default value to 'False'
- apply pull request suggestions by setting default values, and removing flow-style multi-line support
- update pre-commit hook versions, align mypy config with pyproject.toml, remove flakehell and add flakeheaven