[FIX][ENTERPRISE] Prevent Visitor Abandonment after forwarding chat

[murtaza98]

Proposed changes (including videos or screenshots)

Currently the Visitor Abandonment timer isn't affected when the chat is forwarded. However this is affecting the UX in certain situations like eg: A bot forwarding a chat to an human agent

To solve this issue, we'll now be stoping the Visitor Abandonment timer once a chat is forwarded.

Issue(s)

Steps to test or reproduce

Current Behaviour

1. Configure following settings
   
2. Start a new livechat conversion (eg: http://localhost:3000/livechat). Send a message from visitor in livechat
3. Accept the chat as agent and send a message as agent
4. Quickly after sending the message from agent, Forward the chat to another agent or department and do not send any message from visitor.
5. Within 20 seconds the chat will be placed on-hold - This is the behaviour we're modifying now

Expected behaviour

Step 1 to 4 will be the same
5. After forwarding the chat - the chat should not be placed on-hold.

Further comments