TODO (439B)
[x] show more
[x] show domains
[x] show ending (html|pdf)
[x] ENTER on the feed title should go to the listing
[x] caching, persist links and seen, sqlite
[ ] scrolling
[f] instant display
[f] background fetching
[ ] status bar
[ ] folders
[ ] indented feeds under one
[ ] unify duplicate urls
[ ] reload button
[x] really long titles just crop off the end of the screen, we should limit the titles to at least not do that