fix: [onlyoffice] would not save back changes to nextcloud

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

onlyoffice/hooks/nextcloud_app-relation-joined

@@ -15,7 +15,8 @@ compose --no-relations --no-init \
         app:install onlyoffice \; \
         config:system:set onlyoffice DocumentServerInternalUrl --value="http://$MASTER_BASE_SERVICE_NAME/" \; \
         config:system:set onlyoffice StorageUrl --value="http://$MASTER_TARGET_SERVICE_NAME/" \; \
-        config:app:set onlyoffice jwt_secret --value="$KEY"
+        config:app:set onlyoffice jwt_secret --value="$KEY" \; \
+        config:system:set allow_local_remote_servers --type=boolean --value=true
 
 
 ONLYOFFICE_CFG="$SERVICE_CONFIGSTORE/etc/onlyoffice/documentserver/local.json"