docs: global style imports

[AngeloSchulerPiletti]

🔗 Linked issue

❓ Type of change

• [x] 📖 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

It shows how can you import SCSS/SASS files (such as other preprocessors) to be used globally at your Nuxt components.

It took a while to figure out how to do it using Nuxt 3. Also, I noticed that there are other ones with the same doubt asking in forums.

📝 Checklist

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

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[pi0]

Thanks for PR @AngeloSchulerPiletti <3 I believe this feature deserves to be better supported but in the meantime, seems nice solution to be included in documentation. I made https://github.com/nuxt/nuxt.js/issues/14545 to track improvements.

[AngeloSchulerPiletti]

Nice contribution @pi0! I totally agree with you