Translate updated locale codes to es, fr, zh

[mintlify]

Summary

• Updated supported language code lists in translated settings-reference and settings-structure files for es, fr, and zh
• Added fr-CA locale code and fixed ua → uk to match English source changes
• Added missing hu locale code to navigation.languages sections

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Note

Low Risk
Documentation-only updates that adjust listed locale codes; no runtime or schema logic changes.

Overview
Updates the Spanish and French settings-reference.mdx language-code lists to add fr-CA, add missing hu, and replace ua with uk for navigation.global.languages and navigation.languages.

Aligns the Spanish, French, and Chinese settings-structure.mdx language union types for navigation.global.languages and navigation.languages with the same locale-code set (including fr-CA, hu, and uk).

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