Signals Image Artist: Search filters are not honoured when querying the public API

Problem: When querying the api/1.1/search endpoint, despite the fact that a custom search filter has been applied, the response is not filtered; results for all datasets are returned. 

Solution: Ensure the endpoint URL includes a trailing slash. For example, use a URL like this https://sima.domain/api/1.1/search/, rather than this https://sima.domain/api/1.1/search.

Example query:

curl --request POST \
  --url https://sima.domain/api/1.1/search/ \
  --header 'content-type: application/json' \
  --header 'pki-columbus-authentication: <insert_token>' \
  --data-raw '{
  	"filter": {
  		"categories": {
  			"screen_name": {
        			"type": "string",
        			"values": ["MyScreenName"]
      			}  
    		}
  	}
  }'