feat(revealjs): disable menu open button

[sagikazarmark]

This is a workaround for denehyg/reveal.js-menu#99

When the RevealMenu plugin is enabled, there is a menu button on the printed slides.

This change disables that menu during printing.

This isn't necessarily the best possible solution, but since there is no "official" API for updating plugin configuration and the RevealMenu plugin does not expose any destroy or hide button API, this is the best alternative at the moment.

[astefanutti]

Thanks!

[sagikazarmark]

Thanks for quickly merging it!

[sagikazarmark]

@astefanutti would you consider releasing a new version with this fix? Thanks!

[astefanutti]

@sagikazarmark thanks for the reminder. I've just released version 3.6.0 that contains this fix. Thanks again!

[sagikazarmark]

Awesome, thanks!