feat(docker): Added cadvisor on all hosts, added docker metric exporter, added docker compose restart as handler, moved repetetive directory/permission creation into loops, moved repetetive values into variables, cleanup compose template for better empty lines

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/docker_host/templates/compose.yaml.j2

@@ -56,8 +56,8 @@ services:
       - {{device.external}}:{{device.internal}}
 {% endfor %}
 {% endif %}
-
 {% if service.name == 'paperless' %}
+
   {{service.name}}-broker:
     container_name: paperless-broker
     image: docker.io/library/redis:7
@@ -79,13 +79,10 @@ services:
       POSTGRES_DB: paperless
       POSTGRES_USER: paperless
       POSTGRES_PASSWORD: 5fnhn%u2YWY3paNvMAjdoufYPQ2Hf3Yi
-  {% endif %}
-
-
 {% endif %}
 
+{% endif %}
 {% endfor %}
-
 networks:
   net:
     driver: bridge