Commitizen

Fix

- **check**: filter out comment messege when checking

Fix

- **poetry**: add typing-exteions to dev

Fix

- import TypedDict from type_extensions for backward compatibility

Refactor

- **conventional_commits**: remove duplicate patterns and import from defaults
- **config**: add CzSettings and Questions TypedDict
- **defaults**: add Settings typeddict
- **defaults**: move bump_map, bump_pattern, commit_parser from defaults to ConventionalCommitsCz

Feat

- **cli.py**: add shortcut for signoff command
- add signoff parameter to commit command

Feat

- utility for showing system information

Fix

- **cli**: handle argparse different behavior after python 3.9