Sub-issues

Context

The new sub-issues feature in GitHub (currently in Public Preview) allows for organizing issues in a parent/child hierarchy. This feature makes issue management more structured and visual, offering nested hierarchies and enhanced functionality for tracking progress. More details about the public preview can be found here.

Proposal

It would be extremely useful to integrate support for sub-issues into the Visual Studio Code Pull Request GitHub extension. Specifically:

1. Visual Hierarchy: Display the parent-child relationship of sub-issues directly in the extension.
2. Editing Capability: Allow users to edit sub-issues and their relationships directly within the extension.

This feature would enhance productivity for developers managing complex projects by providing a visual representation of issue hierarchies without leaving their development environment.

未指定文件、测试或入口点。从链接的 GitHub public-preview sub-issues 讨论以及扩展中现有的 issue 显示和编辑流程开始；完成后应包括可视化的父子层级，以及在扩展中编辑 sub-issues 及其关系的功能。