CHORE(falco): disable sidekick-ui and Redis

- Use Grafana dashboard instead
- Set webui.enabled: false (disables UI and Redis)
- Remove ingress.yaml for falco-ui
- Saves ~384Mi memory (Redis 256Mi + UI 128Mi)

falco/kustomization.yaml

@@ -1,4 +1,3 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
-resources:
-- ingress.yaml
+resources: []