message: Remove ts-loader and tslint-loader
  These are no longer being used.
diff: "rollup-plugin-terser": "^5.1.2",
  "rollup-plugin-typescript2": "^0.24.3",
  "ts-jest": "^24.1.0",
  - "ts-loader": "6.2.1",
  "tslint": "^5.20.0",
  "tslint-config-prettier": "^1.18.0",
  - "tslint-loader": "^3.5.4",
  "tslint-plugin-prettier": "^2.1.0",
  "typescript": "^3.6.4"
  },
  