Unread Message Handling – Highlight New Messages and Show Unread Count

[mrvirani]

In chat messages, I need an API that shows the number of unread messages. This should be included for each message so that, from the mobile side, we can show a blue tick.

Ref: https://github.com/wpeventmanager/wpem-organizer-app/issues/685

[ritakikani]

@mrvirani this is depend on registration addon, I need to add this functionality in registration first then only we can apply in app

https://github.com/wpeventmanager/wp-event-manager-registrations/issues/659