Fixed class properties issue

Author: whizsid

packages/google-analytics-embed-react/package.json

@@ -11,9 +11,9 @@
     "url": "git+https://github.com/arimacdev/google-analytics-embed-react.git"
   },
   "author": {
-      "name": "WhizSid",
-      "url": "https://github.com/whizsid",
-      "email": "whizsid@aol.com"
+    "name": "WhizSid",
+    "url": "https://github.com/whizsid",
+    "email": "whizsid@aol.com"
   },
   "scripts": {
     "build": "rollup -c",
@@ -24,6 +24,9 @@
     "lint:fix": "eslint --fix src/*"
   },
   "devDependencies": {
+    "@babel/preset-env": "^7.20.2",
+    "@babel/preset-react": "^7.18.6",
+    "@rollup/plugin-babel": "^6.0.3",
     "@rollup/plugin-commonjs": "^24.0.0",
     "@rollup/plugin-node-resolve": "^15.0.1",
     "@types/google.visualization": "^0.0.68",

packages/google-analytics-embed-react/rollup.config.js

@@ -1,6 +1,7 @@
 import peerDepsExternal from 'rollup-plugin-peer-deps-external';
 import resolve from '@rollup/plugin-node-resolve';
 import commonjs from '@rollup/plugin-commonjs';
+import babel from '@rollup/plugin-babel';
 import typescript from 'rollup-plugin-typescript2';
 
 const packageJson = require('./package.json');
@@ -20,11 +21,18 @@ export default {
     }
   ],
   plugins: [
+    typescript(),
+      babel({ 
+          babelHelpers: 'bundled',
+          exclude: 'node_modules/**',
+          extensions: [".js", ".jsx", ".ts", ".tsx"],
+          plugins: [],
+          presets: ["@babel/preset-react", "@babel/preset-env"]
+      }),
     peerDepsExternal(),
     resolve({
       browser: true
     }),
-    commonjs(),
-    typescript()
+    commonjs()
   ]
 };