Is it generally possible to build a connector or a bot in MS Teams that translates a Teams message or thread at the push of a button? For example, from English to Italian or Spanish. Or vice versa. With Google translate API for example? Or Bing?
I find many examples of putting data into Teams. None, however, how to send data from Teams to other services (and process their responses).
Threads and messages themselves don't have an extension point and I can't think of clean way to implement a "do x to this thread/message" in the current UX.
That said, I can see where this would be a very useful extension point. Its an excellent idea and one I would highly recommend you add to the Microsoft Teams UserVoice. It would certainly get my vote.