Site Mobile Navmenu has no links to docs pages

[Jaspervv]

The web version of the site contains a navmenu with all documentation:

However, the mobile version of the site has no way to access these pages:

[jlambe]

Indeed it's lacking but as it is planned to build a fresh documentation website after the stable release, I personnally postpone the fix for this on the next website version only.

I keep the issue open for later reference.