Add "Copy Link" menu item to article list long press menu

[jocmp]

Discussed in #698

^{Originally posted by issteve January 7, 2025}
I often like to share a link to an article from the feed. Right now I need a lot of steps to get to the URL and being able to copy it for sharing it. It would be great to have an option to copy the link of an item directly to the clipboard (or/and have a share option of the URL).

I think of a menu option like in SparseRSSMod after a long press on the item: