Fix bug in chat message status display

[ghost]

Reported by @huey735 there is a display bug when chat messages are stored in mailbox awaiting peer to come online.
The bug was introduced by #5551
The fix is to consider both acknowledged and stored in mailbox statuses when checking if the message timed out.

To reproduce:

• Alice sends chat message to Bob (who is offline).
• Alice's chat window shows Message saved in receiver's mailbox.
• Alice closes chat window, and reopens it again.
• Alice's chat window now says Error: timed out. Try sending message again. << This is the bug.

Expected behavior:

• Alice sends chat message to Bob (who is offline).
• Alice's chat window shows Message saved in receiver's mailbox.
• Alice closes chat window, and reopens it again.
• Alice's chat window shows Message saved in receiver's mailbox.

If Bob were to come online Alice's window would update to Message arrival confirmed by receiver.

[ripcurlx]

utACK

[ManoloSFC]

I'm having that problem, but I'm not getting any answer from the other part after sending multiple messages, so I'm guessing that is not only a problem of Bisq reporting wrongly the status of the message but the message system is actually broken and messages aren't being sent through.