update signauth msg

Author: 0xFirekeeper

apps/portal/src/app/dotnet/wallets/actions/signauthorization/page.mdx

@@ -10,7 +10,7 @@ Integrates `authorizationList` for any transactions.
 This EIP essentially allows you to set code to an EOA, unlocking a world of possibilities to enhance their functionality.
 An authority may execute its own authorization, the only difference is internal whereby the authorization nonce is incremented by 1.
 
-You almost never need to use this API directly, but it's available for low-level access. Use `sponsorGas` with thirdweb wallets to turn them into Smart 7702 EOAs.
+You almost never need to use this API directly, but it's available for low-level access. Use higher level [Account Abstraction](/dotnet/wallets/providers/account-abstraction) APIs instead.
 
 ## Usage