Bump terser from 4.2.1 to 4.8.1 in /angular-front-end#77

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dependabot/npm_and_yarn/angular-front-end/terser-4.8.1stackroute/ibm-wave7-web-knowledge-generator:dependabot/npm_and_yarn/angular-front-end/terser-4.8.1Copy head branch name to clipboard