Option to show chat in front of in-game windows

It would be great if there was a chat option with the possibility of choosing whether the chat should be shown in front of in-game windows or hidden behind.

An example of what this would improve upon is when linking an item from stash to a friend, or simply chatting without having to close whatever window you are currently having up before replying.

Making this an optional choice in the social settings menu I think would be the best.