Update PDF.js to 3.8.162 (#232)

* chore(deps): Bump pdfjs-dist from 2.4.456 to 2.16.105

* fix: use EventBus explicitly
feat: update to new major version of pdfjs

* chore: fix linting issues

* fix: issue with package.json

* chore: update typescript-eslint dependencies

* chore: update typescript-eslint dependencies

Author: ktaletsk