Demo-category-item-test currently commented out

# Problem

`tests/integration/components/demo-category-item-test.js` is currently completely commented out. We need to figure out why we commented it out, and work on either removing, or uncommenting it.

Start by examining tests/integration/components/demo-category-item-test.js and the surrounding integration tests to determine why this test was commented out. Check the repository history or related discussion for the reason, then either remove the obsolete test or restore it if its coverage is still needed. Done means the test's status is resolved and the integration test suite remains valid.

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