refactor(navItem): "correctly" disabling links#24

mfranzke wants to merge 2 commits intomaindb-ux-design-system/db-ux-design-system.github.io:mainfrom

23-disabled-nav-item-is-selectabledb-ux-design-system/db-ux-design-system.github.io:23-disabled-nav-item-is-selectableCopy head branch name to clipboard