Open for review bucket : Impact of Track/Subtrack updates

https://beta-community-app.topcoder.com/challenges?bucket=reviewOpportunities

1. Open for review: filter by types is not working cc @sushilshinde <img width="1440" alt="Screenshot 2020-08-06 at 2 56 03 PM" src="https://user-images.githubusercontent.com/58783823/89515612-fd4e9880-d7f4-11ea-9ec5-262ef99c4abf.png">

<img width="1440" alt="Screenshot 2020-08-06 at 2 56 07 PM" src="https://user-images.githubusercontent.com/58783823/89515648-0b041e00-d7f5-11ea-8875-ef4822f85c70.png">

2. The badge for the challenges is incorrect. All challenges display "CH" whereas some are F2F <img width="1440" alt="Screenshot 2020-08-06 at 4 16 23 PM" src="https://user-images.githubusercontent.com/58783823/89523398-65ef4280-d800-11ea-8fb2-4247cc3812ef.png">

Final Submission Guidelines

Git issue link: https://github.com/topcoder-platform/community-app/issues/4718