Pretend journalbeat is filebeat.

Make it easier to check all of the logs in Kibana at once. Same for
dashboards created by the filebeat setup.

journalbeat/journalbeat.yml

@@ -2,6 +2,11 @@
 output.elasticsearch:
   hosts:
     - https://elasticsearch.shore.co.il:443
+  index: &index 'filebeat-%{[agent.version]}-%{+yyyy.MM.dd}'
+
+setup.template:
+  name: 'filebeat-%{[agent.version]}'
+  pattern: *index
 
 logging:
   level: warning