Correct dev dependencies

package.json

@@ -43,28 +43,40 @@
   },
   "homepage": "https://github.com/rrweb-io/rrweb#readme",
   "devDependencies": {
+    "@babel/core": "^7.11.6",
+    "@babel/preset-env": "^7.11.5",
     "@types/chai": "^4.1.6",
     "@types/inquirer": "0.0.43",
     "@types/mocha": "^5.2.5",
     "@types/node": "^10.11.7",
+    "@types/node-fetch": "^2.5.7",
     "@types/puppeteer": "^1.11.1",
+    "babel-loader": "^8.1.0",
+    "babel-watch": "^7.0.0",
     "chai": "^4.2.0",
+    "core-js": "^3.6.5",
     "cross-env": "^5.2.0",
+    "css-loader": "^4.3.0",
     "inquirer": "^6.2.1",
     "jest-snapshot": "^23.6.0",
     "mocha": "^5.2.0",
+    "node-fetch": "^2.6.1",
     "npm-run-all": "^4.1.5",
+    "path": "^0.12.7",
     "puppeteer": "^1.11.0",
     "rollup": "^2.3.3",
     "rollup-plugin-commonjs": "^9.2.0",
     "rollup-plugin-node-resolve": "^3.4.0",
     "rollup-plugin-postcss": "^3.1.1",
     "rollup-plugin-terser": "^5.3.0",
     "rollup-plugin-typescript": "^1.0.0",
+    "style-loader": "^1.2.1",
+    "ts-loader": "^8.0.4",
     "ts-node": "^7.0.1",
     "tslib": "^1.9.3",
     "tslint": "^4.5.1",
     "typescript": "^3.9.5",
+    "webpack": "^4.44.2",
     "webpack-cli": "^3.3.12",
     "webpack-dev-middleware": "^3.7.2",
     "webpack-dev-server": "^3.11.0",