feat: enable RHOAI dashboard component

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Ambient Code Bot

components/manifests/components/openshift-ai/datasciencecluster.yaml

@@ -4,5 +4,7 @@ metadata:
   name: default-dsc
 spec:
   components:
+    dashboard:
+      managementState: Managed
     mlflowoperator:
       managementState: Managed