Sync G2 v5 axis documentation to Ant Design Charts

[Copilot]

将 G2 v5 坐标轴文档的增量内容同步到 Ant Design Charts，包括新增配置项、属性说明和示例。仅同步配置选项，保持现有代码结构（使用 xField/yField 而非 encode）。

Changes

Chinese Documentation (axis.zh.md)

• Added 40+ missing properties across all axis components:
  • Title: titleFill, titleTextAlign, titleLineHeight, titleDx, titleDy
  • Line: shadow properties (lineShadowColor, lineShadowBlur, etc.), lineCursor
  • Tick: tickCount, tickMethod, shadow properties, tickCursor
  • Label: labelRender, labelTextAlign, labelTextBaseline, shadow properties, labelCursor, labelDx, labelDy
  • Grid: gridOpacity, shadow properties, gridCursor
• Added breaks configuration for axis breaks (discontinuous ranges)
• Added D3-format documentation with syntax guide and examples
• Enhanced configuration examples demonstrating new properties

English Documentation (axis.en.md)

• Added comprehensive overview and step-by-step usage guide
• Added complete property tables for title, line, tick, label, grid, breaks, animate
• Added working React component example
• Maintained consistent structure with Chinese version

Code Structure Preserved

All examples use Ant Design Charts pattern:

{
  xField: 'month',
  yField: 'sales',
  axis: {
    x: { labelFormatter: (d) => `2025-${d}` },
    y: { tickCount: 5 }
  }
}

Not G2 pattern (no encode used).

Original prompt

将 http://github.com/antvis/g2/blob/v5/site/docs/manual/component/axis.*.md 目录下的文档内容同步到 https://github.com/ant-design/ant-design-charts/blob/master/site/docs/options/plots/axis.*.md 文件中。

同步要求：

1. 不能全量覆盖，同步增量内容即可
2. 示例代码仅同步配置（options），代码结构不要改动

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[coderabbitai]

Important

Review skipped

Bot user detected.

To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}