* feat(backend): added new topic for canvasToVideo communication, moved some logic
* feat(backend): enabled canvas recording
* feat(backend): fixed canvas service main logic
* feat(backend): fixed sessionEnd detector
* feat(backend): send canvas mix lists instead of just a sessID
* feat(backend): enabled canvas recording
* feat(backend): removed old logs from video-storage
* feat(backend): default low setting for canvas recording
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