filename attribute does not play well with code-fold

[royfrancis]

Description

I am not sure if this is how it's supposed to work, but it just looks weird that the filename is floating alone when the code is folded.

---
title: Filename position
format:
  html:
    code-fold: true
---

```{r}
date()
```

```{r}
#| filename: R
date()
```

```{ojs}
//| filename: OJS
Date()
```

quarto 1.4.506

[cscheid]

We're tracking this here, will be fixed in a few days #2683