Accessibility support

[jonknapp]

We want to ensure that the html generated is accessible and usable by more people and devices. To support that we could include Herb with a built in accessibility check that we run optionally (or always) in CI to ensure we are adding support as we go.

Herb.configure do |config|
  config.validators.accessibility = true # Enabled by default
end

This would support the Rails code but would not help the React generated games/activities that will be served by the LMS.

Additional Information

• https://herb-tools.dev/projects/linter
• https://herb-tools.dev/integrations/ci/gitlab
• https://marcoroth.dev/posts/railsconf-2025-recap