fix(elastic): fix kibana full name override

NOTES:

The kibana chart did not respect the `fullnameOverride` in the template
helpers despite including fullNameOverride in the values.yaml. This
resolves that issue.

See:
elastic/helm-charts#330 (comment)

charts/elastic/kibana/templates/_helpers.tpl

@@ -9,10 +9,19 @@ Expand the name of the chart.
 {{/*
 Create a default fully qualified app name.
 We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
 */}}
-{{- define "fullname" -}}
-{{- $name := default .Release.Name .Values.nameOverride -}}
-{{- printf "%s-%s" $name .Chart.Name | trunc 63 | trimSuffix "-" -}}
+{{- define "helm-operator.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
 {{- end -}}
 
 {{/*