Remove overrideUnreadTo for chat serialization
This MR doesn't change observed serialization behaviour, only simplifies the logic.
Now the logic says:
- if you don't provide
currentUserId
to the serializer, it will default allunread
properties tofalse
.
Testing strategy
As a sanity check, send a message between two users and validate that unread still works.
Edited by Tomas Vik