#### What type of PR is this?
/kind feature
/area ui
/milestone 2.21.x
#### What this PR does / why we need it:
<img width="508" alt="image" src="https://github.com/user-attachments/assets/3d7a9ac0-1e0a-4a4f-a658-03af7ff89904" />
#### Which issue(s) this PR fixes:
Fixes#7437
#### Special notes for your reviewer:
#### Does this PR introduce a user-facing change?
```release-note
文章管理列表支持显示封面图
```
Ryan Wang