mongodb-instace-model fetch should not wait for databases to resolve when refresing and should not try to resolve collections on it's own. For this to work we want to introduce following changes:

• Change instance-model fetch/refresh logic to only emit a database fetch, but not wait for it to resolve before emitting instance-refreshed
• Refactor sidebar db/coll list to handle rendering while data is fetching
• Refactor collections to be lazy-loaded when selecting a database / expanding list
  • Provide indication that the data is loading

Miro board with changes context