Previously, the Opened section was always hidden for all workflow
objects. We now base the “in nav” check on the full set of object
metadata IDs that have a workspace nav item, instead of only active
non-system objects. So: if an object has a nav item (e.g. workflow
runs), it no longer appears under Opened; if it doesn’t, it can appear
there. The hook was simplified to only expose
`objectMetadataIdsInWorkspaceNav`, and the unused return value was
removed.
