Configure the Log dashboard as default page

https://github.com/Mirantis/mk-lab-salt-model/pull/190
diff --git a/kibana/server/single.yml b/kibana/server/single.yml
index 9a2d6cb..fe0555c 100644
--- a/kibana/server/single.yml
+++ b/kibana/server/single.yml
@@ -4,6 +4,7 @@
   kibana:
     server:
       enabled: true
+      default_app_id: "dashboard/logs"
       bind:
         address: ${_param:single_address}
         port: 5601