[feat] vietnam language

src/lang/index.ts

@@ -3,6 +3,7 @@ import { languageChinese } from "./cn";
 import { languageGerman } from "./de";
 import { languageEnglish } from "./en";
 import { languageKorean } from "./ko";
+import { LanguageVietnamese } from "./vi";
 
 export let language:typeof languageEnglish = languageEnglish
 
@@ -17,6 +18,9 @@ export function changeLanguage(lang:string){
     else if(lang === 'ko'){
         language = merge(cloneDeep(languageEnglish), languageKorean)
     }
+    else if(lang === 'vi'){
+        language = merge(cloneDeep(languageEnglish), LanguageVietnamese)
+    }
     else{
         language = languageEnglish
     }