No longer showing greyed out prev & next

[fosterc1]

Subject of the issue/enhancement/features

v3.1.6 no longer shows a greyed out version of the previous or next button if the page has been identified as hidden.

Previously if a page was identified as hidden this would correctly hide it from the menu, but show a greyed out prev/next button.

Your environment

• version (AT v0.11.3/Framework v5.40.3)
• which browser and its version
• device(s) + operating system(s)

Steps to reproduce

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Expected behaviour

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Actual behaviour

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Screenshots (if you can)

[oliverfoster]

Caused by #72
my fault brad, apologies