i18n(ro): Add ro.json UI translation

[bogdaaamn]

What kind of changes does this PR include?

• Changes or translations of Starlight UI

Description

• Adds the Romanian translation for the Starlight UI only (no docs translation included)

[changeset-bot]

🦋 Changeset detected

Latest commit: 38050ef

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@astrojs/starlight	Patch

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Name	Status	Preview	Updated (UTC)
starlight	✅ Ready (Inspect)	Visit Preview	Nov 17, 2023 1:46pm

[astrobot-houston]

Hello! Thank you for opening your first PR to Starlight! ✨

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   If they spot any issues you will see some error messages on this PR.
   Don’t hesitate to ask any questions if you’re not sure what these mean!

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[delucis]

Thank you @bogdaaamn — looks great! 🚀