[Snyk] Security upgrade react-dom from 16.4.0 to 16.4.2

[phvietan]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json
  • package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	539/1000 Why? Has a fix available, CVSS 6.5	Information Exposure SNYK-JS-NODEFETCH-2342118	No	No Known Exploit
	520/1000 Why? Has a fix available, CVSS 5.9	Denial of Service SNYK-JS-NODEFETCH-674311	No	No Known Exploit
	696/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-UAPARSERJS-1023599	No	Proof of Concept
	616/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.9	Regular Expression Denial of Service (ReDoS) SNYK-JS-UAPARSERJS-1072471	No	Proof of Concept
	696/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-UAPARSERJS-610226	No	Proof of Concept

(*) Note that the real score may have changed since the PR was raised.

Check the changes in this PR to ensure they won't cause issues with your project.

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