*Accessibility compliance issue on Navbar Dropdown *

1. Can't navigate using keyboard (tab, arrow up/down) through dropdown items
2. Can't "escape" (collapse) the drop down menu using "escape" key

WCAG Rational Keyboard dependent users will face difficulty if list items are not getting navigated by using arrow keys or there is no multiple ways option available for navigating then end users will get confused and this may lead to disorientation due to this issue.