refactor(cli): separate parser data and main function logic

[bearomorphism]

The main function is getting a bit large. I believe it is better to separate the core main function logic with cli configuration data for maintainability.

Checklist

• I have read the contributing guidelines

Code Changes

• Run poetry all locally to ensure this change passes linter check and tests

[woile]

I'm not sure I like splitting the cli into 2 files. I expect to find the args of a cli in the cli.py

[Lee-W]

I don't have a strong opinion on this one 🤔 either way works for me. so I'll let you both discuss whether we want to make change like this one

[bearomorphism]

I'm not sure I like splitting the cli into 2 files. I expect to find the args of a cli in the cli.py

I don't expect a main function to be so large, but I also see your point. Maybe we group cli related thing into a file, and other things, such as excepthook and configuration file related things, into another file?

[bearomorphism]

For example

• cli.py: CLI related logic and data, will export to main.py
• main.py: entry point of cz, with configuration file resolution

[woile]

That'd be fine by me