Update default THIRDWEB_API_HOST URL

Changed the fallback THIRDWEB_API_HOST from 'https://api.thirdweb.com' to 'https://api.thirdweb-dev.com' to reflect the new API endpoint.

Author: 0xFirekeeper

apps/dashboard/src/@/constants/urls.ts

@@ -1,5 +1,5 @@
 export const THIRDWEB_API_HOST =
-  process.env.NEXT_PUBLIC_THIRDWEB_API_HOST || "https://api.thirdweb.com";
+  process.env.NEXT_PUBLIC_THIRDWEB_API_HOST || "https://api.thirdweb-dev.com";
 
 export const THIRDWEB_PAY_DOMAIN =
   process.env.NEXT_PUBLIC_PAY_URL || "pay.thirdweb-dev.com";