Complaint Manager- When an incident is closed , no emails being generated

**Describe the bug**
For the Complaint Manager, there should be a functionality to close an incident and provide a resolution status to a named complainer via email , but when an incident is closed , no emails being generated

**Expected behavior**
When an incident is closed , email should be generated

Start with the Complaint Manager's incident-closure flow and trace where the resolution status is handled and where notification sending should occur. Reproduce closing an incident for a named complainer, then verify that an email is generated with the resolution status.

Written by the indexing model from the issue text.