Microsoft tried doing something like this with Windows Phone. It was OK, but the fundamental issue here is that the messaging apps themselves absolutely do not want such a thing, because it would commoditize them and keep the user away from revenue-boosting gimmicks and dark patterns. They will never allow it to be built. RIM was only able to do it before companies realized the value of messaging lock-in; even if it still existed in any real capacity today, this feature would not.