fix(nuxt): don't add an extra baseURL on server useRequestURL

[danielroe]

🔗 Linked issue

resolves #25763

❓ 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

I suspect this was triggered by an upstream change after useRequestURL was introduced, but currently event.path returns full URL so we do not have to add baseURL if app is running with a custom baseURL.

cc: @pi0

📝 Checklist

• I have linked an issue or discussion.
• I have added tests (if possible).
• I have updated the documentation accordingly.

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[pi0]

I'm not sure anything related to these changes in upstream (maybe Nuxt SSR internals?)

BTW seems a good change to me 👍🏼 (to also not diverge util behavior specially it has same name!)

PS: We have withBase that can ensure double base won't happen in similar cases.