the issue:
steamchat's image pop out window now steals window *AND* keyboard focus back if you try to click on the chat window. this makes sending and reading messages with the image pop out active a lot more annoying and difficult. this wasn't a thing before and it creates a worse UX.

OS: windows 10

steps for reproduction:
1. open steamchat
2. click on an image to get the image pop out window
3. try clicking back on the chat window. the image pop out will steal window *and* keyboard focus. note that it will do this repeatedly if you keep trying to focus on the chat window.

expected behaviour:
the image pop out window should act like a normal separate window and not steal focus away from the chat window.

actual behavior:
the image pop out window steals window and keyboard focus if you try to focus on the chat window.