fix(nuxi) : set correct filetype in module template

[djrasmusp]

🔗 Linked issue

resolves #692

❓ 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

change filetype from '.vue' to '.ts' in the module template.

[pkg-pr-new]

Open in Stackblitz

npm i https://pkg.pr.new/create-nuxt-app@693

npm i https://pkg.pr.new/nuxi@693

npm i https://pkg.pr.new/@nuxt/cli@693

commit: e78175b

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (main@d769943). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
packages/nuxi/src/utils/templates/module.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##             main    #693   +/-   ##
======================================
  Coverage        ?   3.31%           
======================================
  Files           ?      65           
  Lines           ?    3136           
  Branches        ?      49           
======================================
  Hits            ?     104           
  Misses          ?    2997           
  Partials        ?      35           

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