Keep CC in the email list when receiving a OOO email response

When an auto-reply (like an OOO) is received, the subsequent replies in the conversation often lose the full list of original CC recipients. This forces agents to manually scroll back through the thread to find a message with the full recipient list or re-add recipients by hand. This loss of context and subsequent manual work creates confusion, frustration, and a poor experience for both the agents and the end-users.

Front should default to preserving the full, original list of recipients (To/CC/BCC) for all replies within a conversation, regardless of an auto-reply being the last message received. This ensures the agent's "Reply" or "Bulk Reply" action always includes all previous participants, maintaining the thread's context and integrity

This should benefit all ticketing inbox users