Support other languages

At the time email-validator does not support other languages in its error messages.
This leads us to check for the error messages and then replace them with our own messages which can be translated.
This is just a hacky solution which is causing trouble, like in the newest version where some messages has changed.

We need this messages in English and German. But i think developers of other countries would love to see the error messages an their language as well :).

If needed I will assist you on this task to translate to German.

未指定文件、测试或入口点。首先定位 email-validator 的错误消息定义，以及现有的翻译或语言处理代码。完成后应包含英文和德文消息，无需调用方替换库错误，并为添加其他语言提供明确的路径。