Crossref syntax such as `See @fig-demofiglabel` is not well supported with no-space situation for `docx` output format.

```
WARNING: Unable to resolve crossref @fig-demofiglabel所示
```

For example:

```
如@fig-demofiglabel所示
```

I tried the syntax below, with no success
```
如@{fig-demofiglabel}所示
```

## MWE

````
---
title: MWE
format: docx
---


See @fig-demofiglabel

如@{fig-demofiglabel}所示

If I add a space before`@`, it works.

如 @{fig-demofiglabel}所示

```{r}
#| label: fig-demofiglabel
#| fig-cap: "Demo figure"
plot(1)
```

````
<img width="596" alt="Screenshot 2022-07-23 at 22 08 56" src="https://user-images.githubusercontent.com/3145794/180608635-124557c7-a459-4c43-9ea9-dfbaec009ac0.png">

2022-07-23T13:44:11Z
mingsu
Future
open
Crossref syntax not well supported with `non-space-sperated` situation 
https://github.com/quarto-dev/quarto-cli/issues/1507