check for loaded or loadError in topology

[christianvogt]

Fixes:
https://issues.redhat.com/browse/ODC-4250

Analysis / Root cause:
When a user does not have access to an optional resource, the k8s hook sets loaded = false and loadError = error. Topology failed to consider loadError as a signal that the resource fetching has completed.

Solution Description:
Consider the resource to be have been fetched if loaded || loadError. After this initial check, non-optional resource load errors are checked in existing code.

Screen shots / Gifs for design review:

Test setup:

Create a user with view and/or self-provisioner access (eg consoledeveloper test user)

Browser conformance:

• Chrome
• Firefox
• Safari
• Edge

cc @karthikjeeyar

[karthikjeeyar]

verified locally, works fine
/lgtm

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