- The Feeds list now shows only the folder name for nested folders, instead of parent ▸ subfolder.
- A folder that has only subfolders, without any directly contained feeds, is now displayed in the list.
- Selecting a folder will now show the feeds within all subfolders (plus any direct feeds).
- Collapsing a folder with subfolders will now collapse them too, as one might expect.
(Some interesting challenges with this one!)
