Add Vietnamese language support and update locale files#421
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khanhthanhdev
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Apr 29, 2026
khanhthanhdev
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- Added 'vi' (Vietnamese) to the list of supported app locales in i18n.ts.
- Updated locale definitions to include Vietnamese translations for various keys.
- Modified existing locale files (de-DE, en, es-419, es-ES, fr-FR, it-IT, ja-JP, ko-KR, pt-BR, pt-PT, ru-RU, zh-CN) to include Vietnamese translations for Vietnamese and ensure consistency.
- Added 'vi' (Vietnamese) to the list of supported app locales in i18n.ts. - Updated locale definitions to include Vietnamese translations for various keys. - Modified existing locale files (de-DE, en, es-419, es-ES, fr-FR, it-IT, ja-JP, ko-KR, pt-BR, pt-PT, ru-RU, zh-CN) to include Vietnamese translations for Vietnamese and ensure consistency.
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Pull request overview
Adds Vietnamese (vi) as a first-class UI locale and introduces a Vietnamese translation catalog, while updating other locale catalogs to expose Vietnamese as a selectable language in the language picker.
Changes:
- Added
vitoAPP_LOCALESand registered avilocale definition (date locale, label key, aliases, search keywords). - Added a new
src/lib/locales/vi.jsontranslation catalog. - Updated existing locale catalogs to include the new
locale.vilabel.
Reviewed changes
Copilot reviewed 14 out of 14 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| src/lib/i18n.ts | Registers vi as a supported app locale and defines its metadata (label key, date locale, aliases, search keywords). |
| src/lib/locales/vi.json | Adds the Vietnamese translation catalog. |
| src/lib/locales/en.json | Adds locale.vi so Vietnamese can be labeled in the English UI. |
| src/lib/locales/de-DE.json | Adds locale.vi for German UI language picker. |
| src/lib/locales/ru-RU.json | Adds locale.vi for Russian UI language picker. |
| src/lib/locales/it-IT.json | Adds locale.vi for Italian UI language picker. |
| src/lib/locales/fr-FR.json | Adds locale.vi for French UI language picker. |
| src/lib/locales/es-ES.json | Adds locale.vi for Spanish (ES) UI language picker. |
| src/lib/locales/es-419.json | Adds locale.vi for Spanish (LatAm) UI language picker. |
| src/lib/locales/pt-BR.json | Adds locale.vi for Portuguese (BR) UI language picker. |
| src/lib/locales/pt-PT.json | Adds locale.vi for Portuguese (PT) UI language picker. |
| src/lib/locales/ja-JP.json | Adds locale.vi for Japanese UI language picker. |
| src/lib/locales/ko-KR.json | Adds locale.vi for Korean UI language picker. |
| src/lib/locales/zh-CN.json | Adds locale.vi for Simplified Chinese UI language picker. |
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