[Snyk] Fix for 16 vulnerabilities

[9rb]

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

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • frontend/package.json
  • frontend/yarn.lock
  • frontend/.snyk

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	405/1000 Why? CVSS 8.1	Prototype Pollution SNYK-JS-AJV-584908	Yes	No Known Exploit
	586/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.3	Regular Expression Denial of Service (ReDoS) SNYK-JS-CODEMIRROR-1016937	No	Proof of Concept
	410/1000 Why? Has a fix available, CVSS 3.7	Regular Expression Denial of Service (ReDoS) SNYK-JS-CODEMIRROR-569611	No	No Known Exploit
	509/1000 Why? Has a fix available, CVSS 5.9	Denial of Service (DoS) SNYK-JS-JSYAML-173999	Yes	No Known Exploit
	619/1000 Why? Has a fix available, CVSS 8.1	Arbitrary Code Execution SNYK-JS-JSYAML-174129	Yes	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Prototype Pollution SNYK-JS-MERGE-1040469	Yes	No Known Exploit
	520/1000 Why? Has a fix available, CVSS 5.9	Denial of Service SNYK-JS-NODEFETCH-674311	No	No Known Exploit
	494/1000 Why? Has a fix available, CVSS 5.6	Command Injection SNYK-JS-NODENOTIFIER-1035794	Yes	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Directory Traversal SNYK-JS-SERVE-174738	Yes	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Information Exposure SNYK-JS-SERVEHANDLER-450208	No	No Known Exploit
	586/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.3	Denial of Service (DoS) SNYK-JS-SOCKJS-575261	Yes	Proof of Concept
	589/1000 Why? Has a fix available, CVSS 7.5	Information Exposure SNYK-JS-WEBPACKDEVSERVER-72405	Yes	No Known Exploit
	601/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.6	Prototype Pollution SNYK-JS-YARGSPARSER-560381	Yes	Proof of Concept
	506/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 3.7	Regular Expression Denial of Service (ReDoS) npm:braces:20180219	Yes	Proof of Concept
	469/1000 Why? Has a fix available, CVSS 5.1	Denial of Service (DoS) npm:mem:20180117	Yes	No Known Exploit

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

With a Snyk patch:

Severity	Priority Score (*)	Issue	Exploit Maturity
	636/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 6.3	Prototype Pollution SNYK-JS-LODASH-567746	Proof of Concept

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

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the effected dependencies could be upgraded.

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

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