fix(cell): 优化自定义右侧区域demo展示

[irisSong]

🤔 这个变动的性质是？

• 新特性提交
• 日常 bug 修复
• 站点、文档改进
• 演示代码改进
• 组件样式/交互改进
• TypeScript 定义更新
• 包体积优化
• 性能优化
• 功能增强
• 国际化改进
• 重构
• 代码风格优化
• 测试用例
• 分支合并
• 其他改动（是关于什么的改动？）

🔗 相关 Issue

💡 需求背景和解决方案

☑️ 请求合并前的自查清单

⚠️ 请自检并全部勾选全部选项。⚠️

• 文档已补充或无须补充
• 代码演示已提供或无须提供
• TypeScript 定义已补充或无须补充
• fork仓库代码是否为最新避免文件冲突
• Files changed 没有 package.json lock 等无关文件

Summary by CodeRabbit

• 新功能
  • 调整展示组件布局，新增居中对齐设置，确保内容（如标题和切换控件）水平居中显示，提高页面布局一致性。

[coderabbitai]

Walkthrough

此次更新对两个 demo 文件中的 Cell 组件做出了调整，在 src/packages/cell/demos/h5/demo4.tsx 和 src/packages/cell/demos/taro/demo4.tsx 文件中，为 Cell 组件新增了 align="center" 属性，从而使组件内容的对齐方式改为居中显示。其余逻辑和导出声明均保持不变。

Changes

文件(s)	变更概要
src/.../cell/demos/h5/demo4.tsx src/.../cell/demos/taro/demo4.tsx	为 Cell 组件增加 align="center" 属性，实现内容居中。

Possibly related PRs

• fix: 处理ts类型异常 #2598: 修改了 Cell 组件，添加属性以提升组件功能。
• fix(tag): 解决taro-h5图文demo不展示图标问题+harmonycpp适配问题修改 #2677: 同样涉及为 Cell 组件添加 align 属性，实现居中布局。
• fix: 优化 divider 垂直类型写法 #2664: 也在 Cell 组件中添加了 align 属性，调整了显示效果。

Suggested reviewers

• xiaoyatong
• Alex-huxiyang

Poem

我是快乐的小兔子在跳跃，
在代码田野中轻轻跃动，
一个小属性添了中心的梦，
让 Cell 组件布局格外温柔，
🎶 代码如诗，心随梦走！
轻咬萝卜，乐享更新的自由。

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 8cc0c1f and 99efd75.

📒 Files selected for processing (2)

• src/packages/cell/demos/h5/demo4.tsx (1 hunks)
• src/packages/cell/demos/taro/demo4.tsx (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (1)

• GitHub Check: test

🔇 Additional comments (2)

src/packages/cell/demos/h5/demo4.tsx (1)

5-7: 优化了 Cell 组件的布局方式

添加了 align="center" 属性使 Cell 内容居中对齐，这样 Switch 开关与标题在视觉上更加平衡，提升了用户界面的美观度和专业感。这种居中布局特别适合包含交互元素的单元格。

src/packages/cell/demos/taro/demo4.tsx (1)

7-7: 保持了 H5 和 Taro 版本的一致性

为 Taro 版本的 Cell 组件也添加了 align="center" 属性，与 H5 版本保持了一致的交互和视觉体验。这种统一的实现方式有助于保持跨平台组件的行为一致性，值得肯定。

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.06%. Comparing base (8cc0c1f) to head (99efd75).
Report is 2 commits behind head on feat_v3.x.

Additional details and impacted files

@@            Coverage Diff             @@
##           feat_v3.x    #3062   +/-   ##
==========================================
  Coverage      86.06%   86.06%           
==========================================
  Files            275      275           
  Lines          18234    18234           
  Branches        2751     2751           
==========================================
  Hits           15694    15694           
  Misses          2535     2535           
  Partials           5        5           

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