Adapt to the new ws gateway
Send feedback messages directly to STOMP Remove ws messages for toggling feedback since REST API is being used
Depends on https://gitlab.com/arsnova/arsnova-backend/-/merge_requests/217
Send feedback messages directly to STOMP Remove ws messages for toggling feedback since REST API is being used
Depends on https://gitlab.com/arsnova/arsnova-backend/-/merge_requests/217