[Suggestion] Typing Bubble when Friends are typing to you

Something similar to the image below, where, when someone you have added to your friends list is typing to you, it could pop up like so-- allowing quick access to that chat and overall usability/accessibility functions that could be disabled in the settings.

It would pop up like a small rectangle, maybe fading in from the side or top-down and pushing your servers down slightly. To combat spam/griefing, it would only work when you're actually friends with the user. The little rectangle could then morph into the chat bubble when the message is sent

I'd welcome any thoughts on this idea, questions, should it be enabled or disabled by default? etc. Perhaps this could be for 'pinned' conversations if that feature was implemented instead of global? or that could be an additional setting