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Move Environments App Query to Use Polling

Andrew Fontaine requested to merge afontaine/new-environments-polling into master

What does this MR do and why?

The old version of this page relies on HTTP polling for updates. As I am not actually using a GraphQL API here, nor are there any GraphQL subscriptions to take advantage of, I still need to rely on HTTP polling.

I fetch the polling interval out of the headers of the response, and write that to a separate query. Then, I utilize that interval in the configuration of the environment app query.

Also update a few of the resolvers to pass back error messages, matching the current environments page.

How to set up and validate locally:

  1. Enable the new environments page 
    Feature.enable(:new_environments_table)
  2. Navigate to environments page for environment
  3. View network tab for polling

MR acceptance checklist

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Edited by Andrew Fontaine

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