feat: print warning messages for unsupported locale

Author: btea

utils/getLanguage.ts

@@ -66,6 +66,12 @@ export default function getLanguage() {
   const languageFilePath = path.resolve(localesRoot, `${locale}.json`)
   const doesLanguageExist = fs.existsSync(languageFilePath)
 
+  if (!doesLanguageExist) {
+    console.warn(
+      `\x1B[33mThe locale langage "${locale}" is not supported, fallback to "en-US".\n\x1B[39m`
+    )
+  }
+
   const lang: Language = doesLanguageExist
     ? require(languageFilePath)
     : require(path.resolve(localesRoot, 'en-US.json'))