feat(module): add --dev argument

[clemcode]

🔗 Linked issue

resolves #454

❓ 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)
• ✨ 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 allows a --dev boolean argument to be passed to the module command to install the module as a devDependency.

A PR updating the docs is ready to be open here : https://github.com/clemcode/nuxt/tree/docs/nuxi/module-dev

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@9a5b30b). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/commands/module/add.ts	0.00%	6 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##             main    #630   +/-   ##
======================================
  Coverage        ?   1.30%           
======================================
  Files           ?      44           
  Lines           ?    2902           
  Branches        ?      44           
======================================
  Hits            ?      38           
  Misses          ?    2823           
  Partials        ?      41           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.