Use svg as component for assets instead of png files.

[sergiop]

No description provided.

[codecov]

Codecov Report

Merging #48 (f5254f6) into master (ccf99a9) will increase coverage by 0.13%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #48      +/-   ##
==========================================
+ Coverage   95.07%   95.20%   +0.13%     
==========================================
  Files          21       23       +2     
  Lines         142      146       +4     
==========================================
+ Hits          135      139       +4     
  Misses          7        7              

Impacted Files	Coverage Δ
src/components/PoweredByGiphy/PoweredByGiphy.js	100.00% <ø> (ø)
.../components/PoweredByGiphy/poweredByGiphyStyles.js	100.00% <ø> (ø)
src/components/Spinner/Spinner.js	100.00% <ø> (ø)
src/components/Spinner/spinnerStyles.js	100.00% <ø> (ø)
src/index.js	95.23% <ø> (ø)
src/assets/PoweredByGiphyLogo.js	100.00% <100.00%> (ø)
src/assets/SpinnerIcon.js	100.00% <100.00%> (ø)

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