refactor: List block and GridCard block style improve

[katherinehhh]

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Description (需求描述)

优化list 区块和网格卡片区块样式

Motivation (需求背景)

Explain the reason for adding or modifying this feature.

Key changes (关键改动）

Provide a technically detailed description of the key changes made.

• Frontend (前端)

1. InternalListBlockProvider
   2.InternalGridCardBlockProvider

• Backend (后端)
  无

Test plan (测试计划)

Suggestions (测试建议)

Provide any suggestions or recommendations for improvements in the testing plan.

Underlying risk (潜在风险)

Identify any potential risks or issues that may arise from the new feature or modification.

Showcase (结果展示）

优化前：

优化后：

[height]

This pull request has been linked to 1 task:

• T-228 list区块样式优化 (unlink task)

💡Tip: Add "Close T-228" to the pull request title or description, to a commit message, or in a comment to mark this task as "Done" when the pull request is merged.

[chenos]

Link T-228