Punctuation compression does not work with `#show`

### Description

```typ
#set text(lang: "zh", font: "Noto Serif CJK SC")

）。啊
）．啊

#show "。": "．"

）。啊 // this is incorrect
）．啊
```

![](https://github.com/user-attachments/assets/51f8aac6-5072-4eee-b9b7-810e7eab80b5)

### Reproduction URL

_No response_

### Operating system

Web app

### Typst version

- [X] I am using the latest version of Typst