When using the Gmail web app to read my emails, I accidentally clicked a button that reads something like "never translate this language" in the right of the translation menu that popped up.
Since it won't let me embed an image yet, here's a link (imgur) to what the translation menu looks like, without the "always translate" or "never translate" that was there before.
I would like to undo this, but can't find how. When I manually translate from the "three dots" menu in the right of an email's header, it doesn't show me an option to always translate anymore, and I can't find anything related in Gmail's settings.
How would I undo this? I use the auto-translate a lot.