next/previous item for normal mode

[staffler-xyz]

There seems to be a problem with previous/next in normal mode:

1. previous/next should be always false for queues with one item
2. when reaching the end of the list, the previous item returned should not be the last item

Maybe there is a better approach, this is just a suggestion 😀

[delannoykbot]

Danger has errored

[!] Invalid Dangerfile file: undefined local variable or method xcov for #<Danger::Dangerfile:0x00007fd869a71590>

 #  from Dangerfile:20
 #  -------------------------------------------
 #  # Asserts the test coverage meets the threshold
 >  xcov.report(scheme: 'AudioPlayer iOS', project: 'AudioPlayer/AudioPlayer.xcodeproj', minimum_coverage_percentage: 50)
 #  -------------------------------------------

Generated by 🚫 Danger