Fallback to window class if app id isn't available

[Diax170]

Currently XWayland windows show up as <title> instead of <class> <title>. There would be a fallback that if app id is unavailable, window class would be queried instead

[Decodetalkers]

what do you mean by class? what is it.. emm

[Diax170]

window class is what x11 windows use instead of app id