feat(ui): update search result ui

[lionelB]

close #362

[codecov]

Codecov Report

Merging #420 into master will increase coverage by 0.11%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #420      +/-   ##
==========================================
+ Coverage    63.8%   63.91%   +0.11%     
==========================================
  Files          76       76              
  Lines         942      945       +3     
  Branches      143      142       -1     
==========================================
+ Hits          601      604       +3     
  Misses        297      297              
  Partials       44       44

Flag	Coverage Δ
#true	63.91% <100%> (+0.11%)	⬆️

Impacted Files	Coverage Δ
...de-du-travail-frontend/src/search/SearchResults.js	76.92% <100%> (+3.01%)	⬆️

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