Add Uzbek on the Mac

[SunnatilloDev]

Summary

Adds Uzbek as its own language on the Mac. Uzbek is written in Latin script and filed under uz, which is what CLDR resolves a plain Uzbek system language to, so Follow System on an Uzbek Mac serves it with no extra mapping.

The catalog has an Uzbek string for every UI key. The release-note history is left in English on purpose: those keys are nearly half the catalog, and a missing translation falls back to the source, so the list reads mixed rather than broken — the state #252 left Japanese in before #290. Happy to follow up with them.

Windows is untouched; i18n.rs is a separate system.

Changes

• Sources/Localizable.xcstrings — Uzbek for 590 UI keys. No other locale's values are modified.
• Sources/Settings/AppLanguage.swift — uzbek = "uz", titled O'zbekcha in its own language, like the other rows.
• project.yml / Sources/Info.plist — uz in CFBundleLocalizations; the plist is the generated output of make gen, not hand-edited.
• Tests — Uzbek added to AppLanguageTests, CatalogCoverageTests, CatalogFormatTests and LocalizationTests, plus the offered-language list in testEveryOfferedLanguageResolves.

Two things worth a reviewer's attention:

The threshold alert is renumbered. Uzbek names the limit before the percentage, so %lld%% of its %@ limit used. is %2$@ limitining %1$lld%% ishlatilgan. — numbered, since #237 was the unnumbered version of this exact string. CatalogFormatTests covers it.

Two picker options are shortened rather than translated literally. The control is already labelled Ko'rsatish, so a literal "Always show" / "Show on hover" repeats the verb and overflows the segmented control in Uzbek. They are Doimo and Kursorda; the sentence that names that option follows suit.

Test Plan

• Run test suite (make test-ci) — 1717 tests, 0 failures
• Tested on macOS (version: 26, Xcode 27)
• UI / Notch interactions verified — Appearance, Notifications and the visibility picker walked in Uzbek by a native speaker; register, terminology and control widths corrected from that pass

Screenshots / Screen Recordings

[vinzdg]

Merged as 1c8e00f. Thanks @SunnatilloDev — 590 keys, Latin script (the right default), registered in every place that matters including CFBundleLocalizations, and leaving the release-note history English is exactly what CONTRIBUTING allows.

Two things folded into the merge commit rather than sitting beside it:

• Orthography. Uzbek Latin writes oʻ and gʻ with U+02BB and the glottal stop with U+02BC; the PR used the ASCII ' for both, which reads as a typewriter mark. Normalised 233 values and the language's own name (Oʻzbekcha) in the picker, and updated the three test expectations that asserted the old forms.
• The catalog conflict with Add Korean on the Mac and on Windows #305 (Korean, merged just before) was resolved structurally rather than by hand — the post-Korean catalog kept its order and your 590 values were grafted onto it — so neither language's entries moved.

One I left for you if you want it: Follow System → Tizimga ergashish reads literally, closer to "chase the system". Tizim boʻyicha is the more natural phrasing. Small, and entirely your call as the native speaker — I didn't want to overrule a translation choice on grounds of taste.

1,734 tests green.