fix: update cloudflare's wrangler.json to wrangler.jsonc (#204)

Author: dario-piotrowicz

frameworks/react-cra/hosts/cloudflare/assets/wrangler.json renamed to frameworks/react-cra/hosts/cloudflare/assets/wrangler.jsonc

@@ -3,8 +3,5 @@
   "name": "tanstack-start-app",
   "compatibility_date": "2025-09-02",
   "compatibility_flags": ["nodejs_compat"],
-  "main": "@tanstack/react-start/server-entry",
-  "vars": {
-    "MY_VAR": "Hello from Cloudflare"
-  }
+  "main": "@tanstack/react-start/server-entry"
 }