Currently Listening: a cross takes an episode off the list

It forgets the saved position, which is what puts an episode on the
list. The one in the player is closed without saving first, or its
next save would put it straight back.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -12,6 +12,8 @@ The long form, with what was wrong before and how it was found, is in
 
 ### Added
 
+- Each episode in Currently Listening has a cross that takes it off the list. It forgets where you
+  got to, so playing it again starts from the beginning.
 - An admin can give a feed a Directory category in its settings (`category` in config.toml), for
   the blogs and other feeds that name none of their own. A feed's own iTunes category still wins.
 - Keyboard shortcuts after Feedly's: j and k through items, Shift-J and Shift-K through feeds,