message: bump: npm package version
diff: {
  "name": "maticjs",
  - "version": "1.0.0-beta.18",
  + "version": "1.0.0-beta.19",
  "description": "Javascript developer library for interacting with Matic Network",
  "main": "dist/matic.node.js",
  "browser": "dist/matic.umd.js",
  