Remove duplicate stream callbacks registration

[nadouani]

Request Type

Enhancement

Work Environment

Any

Problem Description

Currently, some components of the UI register callback function to be called when the stream contains change events. For example: the current cases list is refreshed when a user closes of creates a new case.

Technically, this relies on StreamSrv and PSearchSrv. These services need to be redesigned.

This might lead to some performance issues since the callbacks are not destroyed even if the user leaves the page that registered the callback.