Transpile async await

.babelrc

{
  "presets": [
    ["@babel/preset-env", {
      "modules": false,
      "useBuiltIns": "entry",
      "targets": {
        "browsers": [
          "> 0.25%",
          "not dead"
        ],
        "node": "current"
      }
    }],
    "@babel/preset-react"
  ],
  "plugins": [
    "@babel/plugin-transform-runtime",
    "@babel/plugin-transform-async-to-generator"
  ],
}