User story:

The new multi-region cluster list needs some way of ensuring data is current, such as automatically refetching stale data or offering a refresh button. Users may be particularly interested in watching the status column for new deployments.

Acceptance criteria:

• Cluster lists are refetched in the background (aka old data continues to be shown in the list during refetch) every 60 seconds
• Cluster lists are refetched  every time the user loads (or returns back to) the cluster list page). 
• Cluster lists are refetched when the user clicks on the "loading" button
• Anytime the cluster lists are being fetched, there is a loading icon shown
• Any sorting, filtering, or pagination options remain during and immediately after a refetch.
  • If the user is on a last page (of a pagination) and that page no longer exists after a refetch, the user will be taken to the last page with data

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Implementation details

The spinner icon used when data is being fetched is old and should be switched to the new Patternfly Spinner.

Under development, the following should happen during refetch