Revert "change animation to destroy on change window"
013e1f4d + 758ee761 leads to very broken behavior (the avatar popping out of existence all the time) with tiling window managers, hence why I added 758ee761 in the first place.
013e1f4d kind of breaks a lot of logic in amor trying to handle focus changes gracefully, and I'm not entirely sure what bug it tried to resolve.
(Adding you Pino, because I can't find the username of Stefan here on invent.)