matrix: Make the room directory public

roles/matrix/templates/homeserver.yaml.j2

@@ -83,12 +83,12 @@ public_baseurl: https://{{ matrix_domain }}/
 # public rooms directory through the client API, meaning that anyone can
 # query the room directory. Defaults to 'false'.
 #
-#allow_public_rooms_without_auth: true
+allow_public_rooms_without_auth: true
 
 # If set to 'true', allows any other homeserver to fetch the server's public
 # rooms directory via federation. Defaults to 'false'.
 #
-#allow_public_rooms_over_federation: true
+allow_public_rooms_over_federation: true
 
 # The default room version for newly created rooms.
 #