specify polyfill sideEffect

Author: MendyLanda

packages/render/package.json

@@ -2,6 +2,9 @@
   "name": "@react-email/render",
   "version": "1.1.0",
   "description": "Transform React components into HTML email templates",
+  "sideEffects": [
+    "./src/shared/utils/edge-polyfill.ts"
+  ],
   "main": "./dist/browser/index.js",
   "module": "./dist/browser/index.mjs",
   "types": "./dist/browser/index.d.ts",