Describe the bug

FreshRSS tries to save a local HTML version of pages in the feed, but incorrectly handles urls with relative links. Specifically, it treats the referring page as the site domain rather than the actual location of the article.

To Reproduce

Feed: https://blog.thea.codes/feed.xml
Feed entry: https://blog.thea.codes/typefaces-i-love/ (No body)
Scraped with CSS Selector: article

Real HTML:

...
<img alt="Nunito specimen" src="./nunito.png">
...

FreshRSS scrape:

...
<img alt="Nunito specimen" src="https://blog.thea.codes/nunito.png">
...

Expected behavior

Correct scrape:

...
<img alt="Nunito specimen" src="https://blog.thea.codes/typefaces-i-love/nunito.png">
...

FreshRSS version

1.24.3

Environment information

• Database version: [e.g. Mysql 5.7, SQLite]
• PHP version: 8.2.20
• Installation type: Docker

Additional context

No response