Add support for running dimension in an unfederated environment

This config change follows:

  https://github.com/turt2live/matrix-dimension/blob/master/docs/unfederated.md

roles/matrix-dimension/defaults/main.yml

@@ -58,7 +58,7 @@ matrix_dimension_configuration_yaml: |
     # The URL that Dimension should use when trying to communicate with federated APIs on
     # the homeserver. If not supplied or left empty Dimension will try to resolve the address
     # through the normal federation process.
-    federationUrl: "http://matrix-synapse:8048"
+    federationUrl: "http://matrix-synapse:{{ 8048 if matrix_synapse_federation_enabled|bool else 8008 }}"
 
     # The URL that Dimension will redirect media requests to for downloading media such as
     # stickers. If not supplied or left empty Dimension will use the clientServerUrl.

roles/matrix-synapse/templates/synapse/homeserver.yaml.j2

@@ -226,7 +226,11 @@ listeners:
     x_forwarded: true
 
     resources:
-      - names: [client]
+      - names:
+        - client
+{% if matrix_dimension_enabled and not matrix_synapse_federation_enabled %}
+        - openid
+{% endif %}
         compress: false
 
 {% if matrix_synapse_federation_enabled %}