Fix translation consistency - detected in French, but probably applicable to other languages.

"Prévenez-moi dans ce salon pour Mettre en sourdine" is not consistent. We should add some context on Localazy for those 4 strings. Also maybe create a new key for "Mettre en sourdine", which is `common.mute` and is used elsewhere (or a new key for the 3 possible choices?). The value to replace "Mettre en sourdine" could be "Aucun message" or something better?