[Bug] Optimize list styling in multi-host overview page under dark mode

### Contact Information

_No response_

### 1Panel Version

v2.0.17

### Problem Description

在暗色模式下，多机概览页面样式显示有问题，建议优化。

### Steps to Reproduce

如题。

### The expected correct result

_No response_

### Related log output

```shell

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### Additional Information

_No response_