fix(nuxt): remove trailing slash before checking if prerendered

[danielroe]

🔗 Linked issue

resolves #24456
resolves #24392

❓ 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 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

As rightly pointed out by @Adamkillander96 in #24456 (comment), we strip trailing slashes when creating the app manifest, and it makes sense to remove these when checking if a route has been prerendered (for fetching payloads, etc.)

📝 Checklist

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

[stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (main@09161d0). Click here to learn what that means.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #24516   +/-   ##
=======================================
  Coverage        ?   58.65%           
=======================================
  Files           ?        5           
  Lines           ?      861           
  Branches        ?       46           
=======================================
  Hits            ?      505           
  Misses          ?      356           
  Partials        ?        0           

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

[lassediercks]

thank you for approaching this 🥳

[Adamkillander96]

Wow, that was fast! 😎