fix(isColorSupported): inverted condition for `TERM=dumb`

[NamesMT]

🔗 Linked issue

❓ Type of change

• [ ] 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• [x] 🐞 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

Currently our condition checks for !!TERM=dumb, which means isColorSupported will be set to true for terminal that doesn't support color, and vice-versa, isColorSupported is false for supported terminals,
this corrects the behavior.

Ref: https://www.npmjs.com/package/color-support

Note: Should it be a breaking change?

📝 Checklist

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