Fix: translation of built-in Errors (fixes #23) (#24)

Author: taylortom

lib/LangModule.js

@@ -149,7 +149,7 @@ class LangModule extends AbstractModule {
     if (typeof lang !== 'string') {
       lang = this.getConfig('defaultLang')
     }
-    if (key.constructor.name === 'AdaptError') {
+    if (key.constructor.name.endsWith('Error')) {
       return this.translateError(lang, key)
     }
     const s = this.phrases[lang][key]
@@ -183,7 +183,7 @@ class LangModule extends AbstractModule {
    * @returns The translated error (if passed error is not an instance of AdaptError, the original value will be returned)
    */
   translateError (lang, error) {
-    return error?.constructor?.name === 'AdaptError' ? this.translate(lang, `error.${error.code}`, error.data) : error
+    return error.constructor.name.endsWith('Error') ? this.translate(lang, `error.${error.code}`, error.data ?? error) : error
   }
 }