fix: typo

Author: ElasticBottle

apps/portal/src/app/connect/in-app-wallet/guides/get-user-details/page.mdx

@@ -75,7 +75,7 @@ You can query user details using one of the following parameters:
 - `walletAddress`: The user's wallet address that thirdweb has generated for them
 - `email`: The user's email address
 - `phone`: The user's phone number
-- `extenalWalletAddress`: The user's wallet address that used to login via SIWE
+- `externalWalletAddress`: The user's wallet address that used to login via SIWE
 - `id`: The user's ID
 
 ### Authentication