Ensure good keyboard navigation (accessibility) #1982
Description
Overview
Ensure that it is possible to fully use the platform (let's say for the user point of view, not the advanced item edition and permission panels) using a keyboard.
Acceptance criteria
- allow selection inside the left menu using the keyboard (tab)
- test navigation through various chapter and tasks (and their tabs) as an anonymous user
TODO:
- no left menu control when left menu is hidden
- there is a control on a top left pixel ? check that nothing is useless