Keyboard navigation of the top menu

[srancour]

User Story or Problem Statement

As a keyboard only user, I want to be able to get to the menu items I want without needing to go through every single menu items, including submenu items.

Description or Additional Context

Currently all keyboard only users have to tab through the entire menu structure, including submenus to get to what they need. For editors who have limited access there are easily 32 individual tab stops they need to go through to get from the top skip link to the content on the page. This becomes well over 100 tab stops for users with admin access. This makes it so keyboard users can't effectively navigate through the system, making it unusable to them.

If we allow users to control the opening of menu items instead of opening them and making the user go through every element underneath, we can cut the tab stops down to a minimal amount and make the system actually usable by keyboard only users.

Acceptance Criteria

• A keyboard only user can decide to open the submenu structure they want and can bypass those they don't
• Requires design review
• Requires accessibility review