ACM 13003 Fast cluster page load

[jeswanke]

hey Kevin-- so this is the other half of the pr you said was huge:

1. the first half is now ACM-14157 which is the non-visible caching changes
2. this half is the one that:
   a. organizes the events so that cluster and policy data is sent first from the backend
   b. removes loaded state from LoadPluginData.tsx so that LoadingPage doesn't appear
   c. allows the ClusterPage to gradually load rather then wait for everything to load, similar to large AWS lists

So effectively we still use the loaded state, but now further down at the individual page level:

1. in AcmEmptyState.tsx we check if the loaded state is set and if not, we show the LoadingPage because the data might not be loaded yet so we don't know yet if there's none to show
2. in ErrorPage.tsx -- we don't show an error until the backend is loaded in case of the issue you uncovered with this showing Not found at first-- now it will show LoadingPage until backend has loaded
   https://localhost:3000/multicloud/infrastructure/clusters/details/local-cluster/local-cluster/overview

The reason for doing this is:

1. There's no reason to wait until everything is loaded to see the Applications list since it doesn't depend on it
2. By prioritizing cluster/policy those tables can load faster and user can immediately see progresss

I'm think we don't need cluster table pagination until we reach 7k clusters

Signed-off-by: John Swanke jswanke@redhat.com

[openshift-ci]

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[jeswanke]

/test unit-tests-sonarcloud

[jeswanke]

/test unit-tests-sonarcloud

[sonarcloud]

Quality Gate failed

Failed conditions
46.6% Coverage on New Code (required ≥ 70%)

See analysis details on SonarCloud

[sonarcloud]

Quality Gate failed

Failed conditions
46.6% Coverage on New Code (required ≥ 70%)

See analysis details on SonarCloud

[openshift-ci]

@jeswanke: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/unit-tests-sonarcloud	56c7231	link	true	/test unit-tests-sonarcloud

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[KevinFCormier]

@jeswanke I'm getting an error when I run this using npm run plugins. Can you take a look, pease?

[openshift-merge-robot]

PR needs rebase.

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