Make grafana data source editable

Author: marcleblanc2

charts/sourcegraph/templates/grafana/grafana.ConfigMap.yaml

@@ -16,14 +16,15 @@ data:
         access: proxy
         url: http://{{ default "jaeger-query" .Values.jaeger.query.name }}:16686/-/debug/jaeger
       - name: pgsql
-        type: postgres
-        url: $GRAFANA_PGSQL_HOST:$GRAFANA_PGSQL_PORT
-        user: $GRAFANA_PGSQL_USER
         database: $GRAFANA_PGSQL_DATABASE
-        secureJsonData:
-          password: $GRAFANA_PGSQL_PASSWORD
+        editable: true
         jsonData:
           sslmode: $GRAFANA_PGSQL_SSLMODE
+        secureJsonData:
+          password: $GRAFANA_PGSQL_PASSWORD
+        type: postgres
+        url: $GRAFANA_PGSQL_HOST:$GRAFANA_PGSQL_PORT
+        user: $GRAFANA_PGSQL_USER
 kind: ConfigMap
 metadata:
   labels: