[Snyk] Security upgrade react-scripts from 2.1.8 to 4.0.0#47

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-7f9e19efdff8fca8bac12f86e231834b

+10,681-10,625

Commits on Mar 30, 2021

fix: package.json & package-lock.json to reduce vulnerabilities
snyk-bot
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