Update issue description when deleting work item

Fixes issue shown in #346132 (comment 886404007)

1. Update description when deleting work item
2. Adds tracking when button clicked
3. Redirect to issue list page when deleting from Work Item detail page

How to test

1. Enable work_items feature flag
2. Create an issue, add a checklist item, hover and click "Convert to task" and create a task
3. Click task title checklist item to edit it
4. Delete the task
5. Description of the issue updates