Remove id for correlation from Exception.

[NoriZC]

PR Summary

This PR did:

• Remove id for correlation from Exception. Although The Exception can be constructed with CopilotResponse, it is always set as null in current code base (which also caused the TopicName not collected in the Telemetry). As we need user consent to save the IDs and we are not asking for user consent when an error occurs, I think it should be good to just remove the response parameter.
• Make the EventType clearer to easier identify AIShell Exceptions from all exceptions logged, which would make query easier. Because we are sharing 1 app inisghts resource between AIShell and AzPS/ AzCLI Endpoint. (Please feel free to raise any other suggestions, for example shall we create a new column for this? Like {EventType: "Exceprion", ExceptionFrom: "AIShell"}.)

PR Context

[daxian-dbw]

Looks good to me