Lookml dashboards do not generate summaries

The extension is currently failing to pull through associated queries for the dashboard elements as this API does not return data for lookml dashboards:

https://github.com/looker-open-source/dashboard-summarization/blob/a4979609c9ea0b43d1840120f35c7ac1510b9f46/src/utils/fetchDashboardDetails.ts#L26