Fixed issue with recordings made over bad connections getting stuck at "Uploading...100%""

Recordings that were started while the Pipe Desktop Recording Client was disconnected (but yet to be acknowledged by the recorder as disconnected) failed to resume correctly upon the recorder reconnecting.

This led to the Desktop Recording Client getting stuck at the ‘Uploading…100%’ message while the server discarded the sent data.

Now, the server correctly recognizes such instances, and the recordings will (correctly) resume upon reconnection. As a result, these recordings will be correctly saved and processed.