adapt-contrib-narrative: completion issue

[danielghost]

Steps to reproduce

If the component is initially rendered at small or medium screen sizes, and then subsequently resized to large, the narrative is not complete upon visiting all items.

Actual behaviour

Under the above conditions, the component only completes when returning to the first item again. Essentially the setStage method needs to be called during the resize to set the current item (in this case first item) to _isVisited.

[NayanKhedkar]

PR:adaptlearning/adapt-contrib-narrative#182

[moloko]

done in adaptlearning/adapt-contrib-narrative@a5f4eb2