[Helm] Don't use LoadBalancer service type by default (work behind a proxy)

[KIVagant]

#service.yaml

apiVersion: v1
kind: Service
metadata:
  name: {{ include "kubeview.fullname" . }}
  labels:
{{ include "kubeview.labels" . | indent 4 }}
spec:
  {{ if .Values.ingress.enabled }}
  type: ClusterIP
  {{ else }}
  type: LoadBalancer
  {{ end }}
...

We use a proxy that covers authorization logic and in such setup the app does not need neither Ingress, nor LoadBalancer.

Please add support for ClusterIP no matter if Ingress is enabled or not.