Fix bind_addresses YAML syntax: use block list not flow sequence

Made-with: Cursor

Author: romkey

apps/matrix/config/homeserver.yaml.default

@@ -10,7 +10,8 @@ pid_file: /data/homeserver.pid
 
 listeners:
   - port: 8008
-    bind_addresses: ['0.0.0.0']
+    bind_addresses:
+      - '0.0.0.0'
     tls: false
     type: http
     x_forwarded: true