search does not work on the documentation website

### Describe the bug

This query does not return any answers https://www.sphinx-doc.org/en/master/search.html?q=sphinx

### How to Reproduce

Go to https://www.sphinx-doc.org/en/master/search.html and try to search for something

### Environment Information

```text
Any browser
```


### Sphinx extensions

_No response_

### Additional context

_No response_