Resolve Conversation with Commit

When working through a review, I like to resolve conversations with one commit per conversation request. Right now the workflow is pretty cumbersome, I create the commit via vscode source editor, then copy the commit ID, then paste it into the conversation request as "Resolved" and finally close the issue.

I would like a "Fix with Commit" button on a conversation that will take my staged changes (or all changes if none staged) and once clicked, automate these steps:

1. Commit to the PR
2. Update the conversation where the button was clicked with a new "Resolved " comment
3. Resolve the conversation.

该 issue 未指定实现文件、测试或入口点。首先跟踪 extension 现有的 conversation action 以及 commit/PR 更新流程；当该 action 提交已暂存的更改或所有更改、在 conversation 中发布 commit ID 并将其解决时，即表示完成。