Function yaml.safeLoad is removed in js-yaml 4. Error on the tanstack.com docs

The latest merge completely broke the tanstack.com website.

<img width="836" height="239" alt="Image" src="https://github.com/user-attachments/assets/2c1e055b-d295-40e2-85be-a9a4ab522c39" />

On every page I get this error:

```
Function yaml.safeLoad is removed in js-yaml 4. Use yaml.load instead, which is now safe by default.
```