Support Affiliate Links On Galleries

PR adding them here: https://github.com/guardian/frontend/pull/27071

Example article here: https://www.theguardian.com/fashion/gallery/2024/mar/09/spring-in-your-step-10-menswear-trends-to-update-your-wardrobe-in-pictures

```[tasklist]
### Tasks
- [ ] Disclaimer in the header
- [ ] Some of them are wrapped in a "skim resources" URL
```
