CC: Delete conversation with bot

[alliscode]

The user should be able to delete a conversation with a bot (and other users). The UX should follow the same patterns established by Microsoft Teams. This means only deleting the conversation for the current user and maintaining the conversation for any other users.

[teresaqhoang]

@alliscode @matthewbolanos Gina's actively working on this; the deletion part has been implemented and tested but she has some edge cases she needs to take care of Apps & Services Semantic Kernel

We can keep this one open to ensure that multi-user scenarios are supported