feat(admin-ui): add Vietnamese translation (#5442)

.changeset/plenty-moles-explode.md

@@ -0,0 +1,6 @@
+---
+"@medusajs/admin-ui": patch
+"@medusajs/admin": patch
+---
+
+feat(admin-ui): add Vietnamese translation

packages/admin-ui/ui/src/i18n/index.ts

@@ -49,6 +49,10 @@ export const supportedLanguages = [
     locale: "bs",
     name: "Bosanski",
   },
+  {
+    locale: "vi",
+    name: "Tiếng Việt",
+  },
   {
     locale: "tm",
     name: "Tamil",