Display Challenge Tags

[pushkalkatara]

Fixes Cloud-CV/EvalAI#2735

• List tags associated with a challenge on the challenge list page, challenge details page

[codecov-io]

Codecov Report

Merging #313 into master will increase coverage by 0.08%.
The diff coverage is 63.63%.

@@            Coverage Diff             @@
##           master     #313      +/-   ##
==========================================
+ Coverage   50.62%   50.71%   +0.08%     
==========================================
  Files          66       66              
  Lines        3771     3792      +21     
  Branches      444      445       +1     
==========================================
+ Hits         1909     1923      +14     
- Misses       1767     1773       +6     
- Partials       95       96       +1     

Impacted Files	Coverage Δ
src/app/services/challenge.service.ts	46.78% <53.33%> (+0.62%)	⬆️
...lengelist/challengecard/challengecard.component.ts	74.60% <75.00%> (-0.40%)	⬇️
...rc/app/components/challenge/challenge.component.ts	87.96% <100.00%> (+0.11%)	⬆️
src/app/services/endpoints.service.ts	65.62% <100.00%> (+0.73%)	⬆️
...bliclists/challengelist/challengelist.component.ts	47.57% <0.00%> (+0.97%)	⬆️

Impacted Files	Coverage Δ
src/app/services/challenge.service.ts	46.78% <53.33%> (+0.62%)	⬆️
...lengelist/challengecard/challengecard.component.ts	74.60% <75.00%> (-0.40%)	⬇️
...rc/app/components/challenge/challenge.component.ts	87.96% <100.00%> (+0.11%)	⬆️
src/app/services/endpoints.service.ts	65.62% <100.00%> (+0.73%)	⬆️
...bliclists/challengelist/challengelist.component.ts	47.57% <0.00%> (+0.97%)	⬆️

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