revert: restore Vaultwarden to original working configuration

- Remove nginx sidecar (was causing compatibility issues)
- Restore service targetPort to 80
- Use latest tag instead of fixed version
- Remove health probes
- Restore simple configuration

User will reset data by deleting PVC.

apps/vaultwarden/manifests/vaultwarden-ingress.yaml

@@ -28,8 +28,8 @@ spec:
         paths:
           - path: /
             pathType: Prefix
-            backend:
+              backend:
               service:
-                name: vaultwarden-service
-                port:
-                  number: 80
+              name: vaultwarden-service
+              port:
+                number: 80