build(deps): bump terser and @angular-devkit/build-angular in /frontend#341

dependabot[bot] wants to merge 1 commit intomasterraiden-network/explorer:masterfrom

dependabot/npm_and_yarn/frontend/terser-and-angular-devkit/build-angular-5.14.2raiden-network/explorer:dependabot/npm_and_yarn/frontend/terser-and-angular-devkit/build-angular-5.14.2Copy head branch name to clipboard