Multiline is incompatible with multi-construct mode. #49

Describe the bug
/setmultiline is incompatible with multi-construct mode

To Reproduce
Steps to reproduce the behavior:
1, Add two constructs to a channel
2. Notice that sometimes one or two doesn't respond
3. Log shows that the generation has gone through (using AI horde as endpoint in this case) and is being sent to discord, but the message never appears. The message contains the other constructs name than the one replying. This causes some kind of confusion. If the message contain lines of other constructs than the one intended to reply, they should be displayed as the appropriate construct.

Expected behavior
Bot takes full advantage of situations where a model generates more than one character reply at once.
Bot does not discard a full message because of a stop sequence appearing in a message.
Other constructs are not added to the stop sequence list.