fix: ranges now work even if port is unset in options

[filiphazardous]

🔗 Linked issue

resolves #67

❓ 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

Moved default port to the end of the queue of ports to check (instead of the head of the
queue, as previously).

📝 Checklist

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

[filiphazardous]

@pi0 Any feedback on this?

[AndersCV]

Bump. Possible to get this PR looked at?

[pi0]

Thanks!