message: fix: import dashboard w/o metadata
diff: @@ -67,7 +67,9 @@ class ImportDashboardsCommand(ImportModelsCommand):
  for file_name, config in configs.items():
  if file_name.startswith("dashboards/"):
  chart_uuids.update(find_chart_uuids(config["position"]))
  - dataset_uuids.update(find_native_filter_datasets(config["metadata"]))
  + dataset_uuids.update(
  + find_native_filter_datasets(config.get("metadata", {}))
  + )
  # discover datasets associated with charts
  for file_name, config in configs.items():
  