Most likely not:
Addons do not provide any automatic translations or even possibilities to do so!
Even if you send any text to the chat it cannot automatically be translated to other group users depending on their client language if you have not translated that text in the addon somehow AND send it to the other group members AND they also use the same addon which detects your text, search for your translation and then show them the transaltion!
Addons ar enot able to share any data to other players except if you are grouped and use same/similar addons (suing same libraries which provide small data exchange between groups via MapPings e.g.).
So don't expect and addon to translate texts and show differently, especially if it's in the chat! What you see is what others see! Only maybe changed in text size, color, prefix like timestamps if they use chata dodns like pChat etc. But the message text is the same.