Fix a bug that prevents to handle API errors.

[sergiop]

Closes #42

[codecov]

Codecov Report

Merging #44 (f82331e) into master (7eec11c) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #44      +/-   ##
==========================================
+ Coverage   98.11%   98.16%   +0.05%     
==========================================
  Files          13       13              
  Lines         106      109       +3     
==========================================
+ Hits          104      107       +3     
  Misses          2        2              

Impacted Files	Coverage Δ
src/hooks/useApi.js	100.00% <100.00%> (ø)

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