Add Korean UI localization (#2895)

* Add Korean UI localization

Refreshes the Korean translation from #1544 against the current client locale surface and adds cross-platform locale detection coverage.\n\nCo-authored-by: JinHyeok Jeong <150323322+Kesta-bos@users.noreply.github.com>

* fix(i18n): preserve reviewed Korean status labels

Restore the wording corrections contributed in the original Korean localization work and lock them with exact-copy assertions.

Co-authored-by: JinHyeok Jeong <150323322+Kesta-bos@users.noreply.github.com>

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Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>
Co-authored-by: JinHyeok Jeong <150323322+Kesta-bos@users.noreply.github.com>

packages/app/src/i18n/resources/es.ts

@@ -1797,6 +1797,7 @@ export const es: TranslationResources = {
           es: "Español",
           fr: "Français",
           ja: "日本語",
+          ko: "한국어",
           ptBR: "Português brasileiro",
           ru: "Русский",
           zhCN: "中文",