fix(deps): update react monorepo to v19

Author: renovate[bot]

examples/shopify-integration/package.json

@@ -37,8 +37,8 @@
     "events": "^3.3.0",
     "isbot": "^5.1.0",
     "prisma": "^5.11.0",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "vite-tsconfig-paths": "^5.0.1"
   },
   "devDependencies": {
@@ -49,8 +49,8 @@
     "@shopify/web-pixels-extension": "^2.16.0",
     "@types/eslint": "^9.6.1",
     "@types/node": "^22.2.0",
-    "@types/react": "^18.2.31",
-    "@types/react-dom": "^18.2.14",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
     "eslint": "^8.42.0",
     "eslint-config-prettier": "^10.0.0",
     "prettier": "^3.2.4",