Extract mautrix-twitter's `network.displayname_template` configuration into a variable (`matrix_mautrix_twitter_network_displayname_template`)

roles/custom/matrix-bridge-mautrix-twitter/defaults/main.yml

@@ -44,6 +44,11 @@ matrix_mautrix_twitter_msc4190_enabled: "{{ matrix_bridges_msc4190_enabled }}"
 # A public address that external services can use to reach this appservice.
 matrix_mautrix_twitter_appservice_public_address: ''
 
+# Displayname template for Twitter users.
+# {{ .DisplayName }} is replaced with the display name of the Twitter user.
+# {{ .Username }} is replaced with the username of the Twitter user.
+matrix_mautrix_twitter_network_displayname_template: "{% raw %}{{ .DisplayName }}{% endraw %} (Twitter)"
+
 matrix_mautrix_twitter_bridge_command_prefix: "!tw"
 
 matrix_mautrix_twitter_bridge_permissions: |

roles/custom/matrix-bridge-mautrix-twitter/templates/config.yaml.j2

@@ -11,7 +11,7 @@ network:
     # {{ .DisplayName }} is replaced with the display name of the Twitter user.
     # {{ .Username }} is replaced with the username of the Twitter user.
     # {% endraw %}
-    displayname_template: "{% raw %}{{ .DisplayName }}{% endraw %} (Twitter)"
+    displayname_template: {{ matrix_mautrix_twitter_network_displayname_template | to_json }}
 
     # Maximum number of conversations to sync on startup
     conversation_sync_limit: 20