fix(isColorSupported): inverted condition for TERM=dumb

[NamesMT]

🔗 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

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.

[pi0]

Thanks!