message: launchpad-ledger: Add DOM lib to tsconfig.json
diff: "baseUrl": ".",
  "outDir": "build",
  "declarationDir": "build/types",
  - "rootDir": "src"
  + "rootDir": "src",
  + "lib": ["es2017", "dom"]
  },
  - "include": [
  - "src/**/*"
  - ]
  + "include": ["src/**/*"]
  }
  