Better Loading UI Story

Currently, loading stops itself at the top of the tree, which disables the rendering of all encapsulated UI elements.

Ideally, if a view is trying to use DAO information within a view, the entirety of the view would render, and only the data fields that're tied to the DAO's query to the graph server would have a loading bar. Currently this whole view would be a loading bar. Create some test cases for this, ensure it is in fact "broken", and figure out a better strategy for developers.

The work on this is currently happening in this branch:
https://github.com/dOrgTech/DAOcomponents/tree/optional-loading-handler

Esamina il branch optional-loading-handler collegato nell’issue e traccia il modo in cui le viste basate su DAO determinano attualmente lo stato di caricamento. Aggiungi casi di test che riproducano il comportamento di caricamento dell’intera vista, quindi verifica che la vista venga renderizzata mentre solo i campi dati dipendenti da DAO mostrano indicatori di caricamento.

Scritto dal modello di indicizzazione a partire dal testo della issue.