Expose audit message body from ServiceInsight in ServicePulse

[PhilBastian]

Describe the feature.

Note: this issue has #2130 as a prerequisite, which will create the screen onto which the message body will be placed

This issue is for showing the message body for an individual message selected from the message audit functionality in ServicePulse, currently only accessible in ServiceInsight.

Requirements

• Retrieve the message body from http://servicecontrolurl/api/conversations/messageId
• Display the message body in a format similar to that used in Failed Messages

The Body 'tab' should be the third on a message details page

• Properties
• Headers
• Body
• Flow Diagram
• Saga Diagram
• Sequence Diagram

Additional Context

No response