Consider adding the ability to hide workspace-specific entities outside of that workspace

Problem/Motivation

When a new entity is created in a workspace, a default unpublished revision is also created in Live. In certain cases, it might be confusing for content editors to see that entity outside of the workspace it was created in.

A specific example is the media library widget, which, if not configured to filter our unpublished media items by default, will allow content editors to select and use an unpublished workspace-created media item in another workspace.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet