Convert translation feature

[andrewtavis]

The current translation feature found in kwx.utils.translate_output() is based on py-googletrans, which is steadily being less and less maintained. A better option would be if the translation feature could be converted over to another Python API such as OpenNMT-py, argos-translate, textblob, 🤗 transformers or another machine translation package.

[andrewtavis]

DeepL also has a Python client that could be a good fit for this.