fix(types): deduplicate types

[dargmuesli]

🔗 Linked issue

#437

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 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)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

• Remove unused type file
• apply previous fix to used type file
• remove todo comment (does look outdated or should be a github issue instead)

Resolves #437.

📝 Checklist

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

[danielroe]

Thanks - this looks good to me ❤️