Modify sankey diagram utilizing UBKG

[maxsibilla]

https://docs.sennetconsortium.org/data-sankey/

• [x] Utilize new category property from the UBKG organs endpoint to get the grouped organ based on laterality
• [x] Add a new column that will come before dataset_type that will display the same top level hierarchy as in the portal (modality from the assay classes endpoint

[libpitt]

1. hit Ingest API /assaytype => description from response is the assay_displayname
2. dataset_type_hierarchy => modality from UBKG (https://ontology-api.dev.hubmapconsortium.org/assayclasses?application_context=SENNET) where value.assaytype = Ingest API’s response assaytype