webgui: disabling websockets handling in window destructor
webgui: disabling websockets handling in window destructor

While websockets can run in multiple threads, one should clearly
identify instance as disabled
olifre/root,root-mirror/root,root-mirror/root,karies/root,karies/root,olifre/root,root-mirror/root,karies/root,karies/root,olifre/root,karies/root,olifre/root,karies/root,olifre/root,karies/root,olifre/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,olifre/root,karies/root,karies/root,root-mirror/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,olifre/root,root-mirror/root,root-mirror/root,olifre/root