Feature: Enhance Workflow Instance Viewer to Display Activity State by Scope

### Description

The current workflow instance viewer provides an insight into activity executions on an individual level. While this is useful, it lacks a comprehensive view of all the activities within a specific scope during the same execution.

### Proposed Solution

For improved clarity and troubleshooting, it would be beneficial to display all of the activities within a given scope during the same execution. Specifically, when dealing with composite activities like ForEach, we should be able to view the state of all child activities in its Body for a chosen iteration.

This will enable developers and users to understand the flow and state changes of the activities within a specific iteration, making it easier to debug and trace the workflow's behavior.

### Additional context
To better illustrate this, see the attached screenshot.