refactor: Refined channel-states, introduced `ChannelState` -- MOVE

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / implementation / kafka / ChannelNotReadyException.java

package de.juplo.kafka.chat.backend.domain.exceptions;


public class LoadInProgressException extends IllegalStateException
{
  public LoadInProgressException()
  {
    super("Load in progress...");
  }
}