Begin transfering things to TS

package.json

@@ -20,6 +20,8 @@
         "@babel/plugin-transform-async-to-generator": "^7.0.0-beta.49",
         "@babel/plugin-transform-runtime": "^7.0.0-beta.49",
         "@babel/preset-env": "^7.0.0-beta.49",
+        "@types/node": "^10.12.15",
+        "@types/webpack-env": "^1.13.6",
         "autoprefixer": "^8.2.0",
         "axios": "^0.18.0",
         "babel-cli": "6.18.0",
@@ -36,7 +38,6 @@
         "css-loader": "^0.28.11",
         "eslint": "^5.6.0",
         "eslint-config-vue": "^2.0.2",
-        "eslint-plugin-flowtype-errors": "^3.6.0",
         "eslint-plugin-html": "^4.0.6",
         "eslint-plugin-vue": "^4.7.1",
         "extract-text-webpack-plugin": "^4.0.0-beta.0",