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.

首先檢查 tests/integration/components/demo-category-item-test.js 及其周圍的整合測試，以確定此測試為何被註解掉。查看 repository 歷史記錄或相關討論以了解原因，然後刪除已過時的測試，或在仍需要其涵蓋範圍時還原該測試。完成的標準是該測試的狀態已獲得解決，且整合測試套件仍然有效。

由索引模型根據 Issue 內容生成。