T2848

Depends on D13387

npm audit brought up a number of moderate to severe issues. Resolved with a combination of

• npm audit fix
• individually updating dev dependencies to latest version
• removing coveralls and its associated .yaml file, which had no fix, no new version in 2 years, not used here
• Update unit tests to use updated syntax of latest random-js version

npm audit and all good
npm test and unit tests pass
npm run build and no build errors