Revert "Not to detect user lang when running in Node"

app/locales/index.ts

@@ -66,9 +66,6 @@ function setItem(key: string, value: string) {
 }
 
 function getLanguage() {
-  if (typeof process === "object") {
-    return DEFAULT_LANG;
-  }
   try {
     return navigator.language.toLowerCase();
   } catch {