Update CRA react-scripts#31

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EduGlzC wants to merge 3 commits intoerickwize:masterfrom

EduGlzC:Challenge-1

Commits on Mar 19, 2021

Update CRA react-scripts
EduGlzC
committed

Commits on Mar 20, 2021

Commit UI for Challenge-1
EduGlzC
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Commits on Apr 7, 2021

Changes after feedback from reviewer for Challange-1
EduGlzC
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