Compete, Tracks and Community menus can't access via arrow keys

Steps to Reproduce

1. Go to https://www.topcoder.com/challenges/30095347
2. Click near logo and use tab key to go to Tracks or Community
3. When user is in the Tracks menu
4. Press arrow (up/down) keys

Expected Result Should be able to access the menus using arrow keys, if not user can't access those menus

Actual Result Compete, Tracks and Community menus can't access via arrow keys

Device: Desktop/Labtop Operating System: Windows Browser: Chrome

WCAG Category: 2. Operable WCAG Level: A WCAG Success Criterion: 2.1.1 Keyboard Screen Reader Used: N/A Accessibility Audit Tool used:

Attachment https://topcodermsft-my.sharepoint.com/personal/pd-topcoder_topcodermsft_onmicrosoft_com/Documents/Forms/All.aspx?cid=6d6ec7be%2Dde44%2D4211%2Dbc02%2D19abb2187a9e&FolderCTID=0x0120005C598A51049FC14CBA882E1AEE168F51&sortField=Modified&isAscending=false&id=%2Fpersonal%2Fpd%2Dtopcoder%5Ftopcodermsft%5Fonmicrosoft%5Fcom%2FDocuments%2FMSFT%2DTeams%2DQA%2FJune%202019%2F29%20Jun%2FTest%20Results%2FBug%20Videos%20%26%20Log%20Files%2Fcodejam%2DAccessibility%2F77

Final Submission Guidelines

Upload the updated code to TopCoder