Add tabs for challenges

[Harshit28j]

[Harshit28j]

https://github.com/Cloud-CV/EvalAI/assets/48647625/3b226df4-b28b-4f3d-9e90-5a82e4877283

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 69.28%. Comparing base (96968d6) to head (06c5d20). Report is 1156 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4385      +/-   ##
==========================================
- Coverage   72.93%   69.28%   -3.65%     
==========================================
  Files          83       20      -63     
  Lines        5368     3572    -1796     
==========================================
- Hits         3915     2475    -1440     
+ Misses       1453     1097     -356     

Files with missing lines	Coverage Δ
frontend/src/js/controllers/challengeListCtrl.js	93.75% <100.00%> (-0.94%)	:arrow_down:

... and 64 files with indirect coverage changes

Files with missing lines	Coverage Δ
frontend/src/js/controllers/challengeListCtrl.js	93.75% <100.00%> (-0.94%)	:arrow_down:

... and 64 files with indirect coverage changes

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[RishabhJain2018]

Closing this since #4502 fixed it.