fix(nuxt): router defaults overwrite custom options always

[johannschopplich]

🔗 Linked issue

• feat(nuxt): default router scroll behavior

❓ 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)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Router default options were introduced in ba3a118. That's great! But now, custom implementations (via app/router.options.(js|ts) won't have an effect. The default options stay at the top of all router option layers.

The source of the error seems to be:

framework/packages/nuxt/src/pages/module.ts

Line 148 in ba3a118

routerOptionsFiles.unshift(resolve(runtimeDir, 'router.options'))

unshift adds the default to the beginning, but the router options are reversed anyway later:

framework/packages/nuxt/src/pages/module.ts

Line 159 in ba3a118

...routerOptionsFiles.map((_, index) => `...routerOptions${index},`).reverse(),

📝 Checklist

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

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