fix: support optional params in ParsedArgs types

[Barbapapazes]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This PR allow the type ParsedArgs to support the required boolean property. Depending on the value of this property, the args coud be type | undefined or type.

• positional, If required is false, the type is type | undefined. If required is false and a default value is provided, the type is type. If required is true, the type is type. If required does not exist, the type is type.
• string, If required is false, the type is type | undefined. If required is false and a default value is provided, the type is type. If required is true, the type is type. If required does not exist, the type is undefined.
• boolean, If required is false, the type is type | undefined. If required is false and a default value is provided, the type is type. If required is true, the type is type. If required does not exist, the type is undefined.

Improve DX.

Should I add some type tests?

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[pi0]

Thanks for this PR. Types defenitly need refactor but i think first i need to make some structure changes and that likely will conflict with this.