Fix the setting to enable the 'run' button for notebooks in staging

Author: DriesVerachtert

.deployment-envs/.env.staging

@@ -28,4 +28,5 @@ NEXT_PUBLIC_SANITY_DATASET="staging"
 # AI Agent service from Machine Learning team
 NEXT_PUBLIC_AI_AGENT_URL="https://staging.openbraininstitute.org/api/agent/"
 
-NEXT_PUBLIC_ENABLE_RUN_NOTEBOOK=True
+NEXT_PUBLIC_ENABLE_RUN_NOTEBOOK=true
+