✨ Pull requests section to be able to add a new remote

### Description

Let's consider that I have a project in this case the same CE, on this repository there are different users who do different pr.

Now I want to try this pr, consider that I am a Reviewers.

What should I do:
`git remote add NameOrigin git@github.com:NameUser/Project.git
`

But what if there was a section, which tells me all the prs there are for a possible repository.

Which automatically takes all the open pr, shows me the list.
If I click, it asks me if I want to add it to remote so I can try it.

### Screenshots


該 issue 提到了 Pull Requests 區段、Git remotes 和 GitHub 上開啟的 PR，但沒有說明檔案、測試或進入點。首先定位 pull-request UI 和儲存庫 remote 的處理邏輯。完成的標準是使用者可以檢視開啟的 PR，並將所選 PR 的儲存庫新增為 remote。

由索引模型根據 Issue 內容生成。