Reply to comments on Description page

After someone has reviewed my PR, I can see their review comments as part of the Description page.

However, to reply to these comments, I have to go to the file that the comment is in, and reply from there.

It'd be really useful to be able to just reply from the Description page.

This is possibly a duplicate of https://github.com/Microsoft/vscode-pull-request-github/issues/71#issuecomment-400525734 - however that issue refers to viewing the list of comments, not replying to them

まず、Descriptionページでのレビューコメントの表示と、コメントされたファイルから利用できる既存の返信フローを特定します。コメントの読み込みと返信の流れを追跡し、Descriptionページから返信操作を行えるようにして、返信が正しく投稿されることを確認します。