Get correct icon for feed when available

[luigihenrick]

Is your feature request related to a problem? Please describe.

Yes, when adding a new feed, it does not get the correct icon specified on FreshRSS.

Describe the solution you'd like

While configuring FreshRSS is possible to share your feeds and specify the correct icon for it.
On other RSS readers, specifically using GoFeed, the reader does two requests, one passing format = RSS f=rss and other with HTML param f=html in order to get the icon, would it be possible to implement a similar solution for twine?
As I use FreshRSS for all my feeds, currently there's no way to differentiate the feeds.
Thanks in advance, amazing app!

Additional context

Requests monitored using GoFeed

Twine screenshot

[msasikanth]

Oh, haven't tried it with the FreshRss feeds before. However, we are looking into adding support for fresh RSS service this year. In the meantime, I will look into this. Thanks for flagging this.

[luigihenrick]

My first analysis on this was wrong, the correct way to get the icon is reading the correct properties on RSS xml.
PR created: #786. @msasikanth