Use vocabularies for searches of GRSciColl collections and institutions

[ManonGros]

Relates to gbif/registry#549 and gbif/registry-console#558.

The drop download lists should reflect the available vocabularies. For example this drop down list should use https://registry.gbif.org/vocabulary/CollectionContentType/concepts:

[ManonGros]

As for the registry console, could we display the parent concepts along with the children concepts?

[MortenHofft]

In the registry I have to do 42 requests for a single keystroke on e.g. PreservationType
It isn't really something I want to do in a public facing product that should perform well. For that we probably need a backend that supports that kind of functionality.

ping @marcos-lg
Currently I can do https://api.gbif.org/v1/vocabularies/PreservationType/concepts/suggest?q=sto&locale=en-AR

that will return

[
  {
    "key": 1106,
    "name": "StorageOutdoors",
    "labels": []
  },
...
]

getting the label with fallback to english, as well as all the parent labels would make it more usable. Currently I would have to do an extra lookup for each result without a label, and secondly an additional lookup for each parent. And do so for all results. And so we end up with many requests per keystroke

[marcos-lg]

It's fine to me to add English labels and parents in the response. Can you create an issue in the vocabulary repo with it and any other wishes you might have?