Issue Summary

Automatically remove/add Chat Notification user based on disabling/enabling of the slack integration app and also avoid adding the app's user to the newly added space's space permissions.

Steps to Reproduce

1. Login to the Confluence site.
2. Click on the  icon on the top right cornor.
3. Navigate to Space Permission -> select the space under Individual Spaces
4. You can see the Chat Notification user is already there regardless of whether the slack integration app is enabled or not.

Expected Results

• If Individual Spaces is enabled, the Chat Notification user will be added automatically.
• If Individual Spaces is disabled, the Chat Notification user will be removed automatically.

Actual Results

The Chat Notification user is bundled with Confluence and is already there of whether the slack integration app is enabled or not.

Workaround

Need to remove the Chat Notification user manually from every space individually.