fix(authentication): update account linking button navigation

- Replace context.goNamed with context.pushNamed for account linking request
- This change ensures proper navigation stack handling when navigating to the account linking request page

Author: fulleni

lib/authentication/view/account_linking_page.dart

@@ -75,7 +75,7 @@ class AccountLinkingPage extends StatelessWidget {
                       onPressed: isLoading
                           ? null
                           : () {
-                              context.goNamed(
+                              context.pushNamed(
                                 Routes.accountLinkingRequestCodeName,
                               );
                             },