text: Title: Activity plugin missing docs
  Body: ## CKAN version
  2.10.1
  
  ## Describe the bug
  I added the configuration "ckan.auth.public_activity_stream_detail = True" and marked the dataset public but in dashboard not appeat Activity Stream and in activity table does not record the activities.
  
  ### Additional details
  ![image](https://github.com/ckan/ckan/assets/79480476/065bdfe0-4319-4eef-8d30-825ecadcf2fd)
  ![image](https://github.com/ckan/ckan/assets/79480476/fcaec913-673e-49a1-9f86-a5e2e5f3c4c9)
  
  
  CKAN Configuration Option
  ckan.auth.public_activity_stream_detail = True
   