💔-ifying unloved popup alert

Signed-off-by: Jake Bromberg <jake.bromberg@gmail.com>
redefining SearchShareAction's inheritance declaration (now NSObject<PlaycutCellShareAction>)

Signed-off-by: Jake Bromberg <jake.bromberg@gmail.com>
narrowing the type of the entity assignable to a LivePlaylistTableViewCell

Signed-off-by: Jake Bromberg <jake.bromberg@gmail.com>