Get example building with esm error

Author: snowystinger

examples/rsp-cra-18-webpack-4/.gitignore

@@ -0,0 +1,3 @@
+{
+  "presets": ["@babel/env", "@babel/preset-react"]
+}

examples/rsp-cra-18-webpack-4/README.md

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+{
+  "name": "rsp-cra-18-webpack-4",
+  "version": "1.0.0",
+  "description": "test esm with webpack 4",
+  "main": "src/index.jsx",
+  "scripts": {
+    "build": "webpack --mode production",
+    "start": "webpack-dev-server --mode development --open",
+    "test": "test"
+  },
+  "dependencies": {
+    "@adobe/react-spectrum": "^3.25.0",
+    "@spectrum-icons/workflow": "^4.1.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.1.0",
+    "@babel/cli": "^7.1.0",
+    "@babel/preset-env": "^7.1.0",
+    "@babel/preset-react": "^7.0.0",
+    "webpack": "4.19.1",
+    "webpack-cli": "3.1.1",
+    "webpack-dev-server": "3.1.8",
+    "style-loader": "0.23.0",
+    "css-loader": "1.0.0",
+    "babel-loader": "8.0.2"
+  }
+}