enable fr_FR locale

apps/app/src/client/util/locale-utils.ts

@@ -8,12 +8,14 @@ import * as nextI18NextConfig from '^/config/next-i18next.config';
 const DIAGRAMS_NET_LANG_MAP = {
   ja_JP: 'ja',
   zh_CN: 'zh',
+  fr_FR: 'fr',
 };
 
 const ACCEPT_LANG_MAP = {
   en: Lang.en_US,
   ja: Lang.ja_JP,
   zh: Lang.zh_CN,
+  fr: Lang.fr_FR,
 };
 
 export const getDiagramsNetLangCode = (lang) => {

packages/core/src/interfaces/lang.ts

@@ -2,6 +2,7 @@ export const Lang = {
   en_US: 'en_US',
   ja_JP: 'ja_JP',
   zh_CN: 'zh_CN',
+  fr_FR: 'fr_FR',
 } as const;
 export const AllLang = Object.values(Lang);
 export type Lang = typeof Lang[keyof typeof Lang];