fix: PageHead header alignment, analytics proxy, and infra improvements (#64)

🤖 Pull request created from `various-fixes` containing PageHead
breadcrumbs and navigation alignment fixes, Umami analytics proxy, and
infrastructure updates.

ci/k8s/infrastructure/networking/kustomization.yaml

@@ -2,3 +2,9 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - ingress.yaml
+  - middleware-strip-beacon.yaml
+  - ingress-beacon.yaml
+  - middleware-sec-headers-common.yaml
+  - middleware-sec-headers-www.yaml
+  - middleware-sec-headers-docs.yaml
+  - middleware-sec-headers-umami.yaml