Challenge Listings: Some challenges do not have the sub track details

https://test-community-app.topcoder-dev.com/challenges?bucket=past https://test-community-app.topcoder-dev.com/challenges?bucket=openForRegistration

user: dan_developer/dantopcoder123

cc: @lakshmiathreya

<img width="1440" alt="Screenshot 2020-05-25 at 11 52 43 AM" src="https://user-images.githubusercontent.com/58783823/82784571-6d987f80-9e7e-11ea-9ed1-6c712cd8eac5.png"> <img width="1440" alt="Screenshot 2020-05-25 at 11 52 50 AM" src="https://user-images.githubusercontent.com/58783823/82784576-725d3380-9e7e-11ea-9d0c-b9888b237033.png">

Final Submission Guidelines

Git issue link: https://github.com/topcoder-platform/community-app/issues/4404