[accessibility] hide the mobile menu on desktop from keyboard users.

[nisarhassan12]

Fixes the following from #1149

[jorgeorpinel]

This is hard to check on https://dvc-landing-hide-menu-zp2dub1q.herokuapp.com/ because it doesn't include the focus visibility from #1153 so Idk where I am after every tab. But it seems like it's working.

Please request our review again after #1153 is merged into master and then master into here 🙂

[jorgeorpinel]

Hey guys. There's a similar problem in https://dvc.org/doc: Once you get to the left sidebar with tabs, it seems to traverse all the collapsed (hidden) items. Should I open a specific issue for that or do you want to send a PR directly perhaps, @nisarhassan12?

[nisarhassan12]

Thanks! @jorgeorpinel I would send a Pr directly.

[nisarhassan12]

Hey guys. There's a similar problem in https://dvc.org/doc: Once you get to the left sidebar with tabs, it seems to traverse all the collapsed (hidden) items. Should I open a specific issue for that or do you want to send a PR directly perhaps, @nisarhassan12?

@jorgeorpinel someone else can work on this.

[jorgeorpinel]

Sure np, thanks @nisarhassan12