docs(i18n): add Uzbek (uz) to localization documentation

[OgabekYuldoshev]

Summary

Adds Uzbek (uz) – O'zbekcha to the "Supported Languages" list in the localization docs.

Changes

File: docs/content/docs/features/localization.mdx
Change: One line added to list Uzbek in the supported languages section.

Checklist

• Uzbek is listed correctly with locale code uz in localization.mdx.
• The list order is consistent with the rest of the doc (e.g. alphabetical or existing order).

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commit: cc9fbf7

[nperez0111]

Ah, right thanks @OgabekYuldoshev