refactoring: replaced part of the code to work with new config classes

client/core/models/servers/apiV2ServerConfig.h

@@ -20,12 +20,19 @@ namespace apiv2
         QString end_date;
     };
 
+    struct AuthData
+    {
+        QString apiKey;
+    };
+
     struct ApiConfig {
         QVector<Country> availableCountries;
 
         Subscription subscription;
         PublicKey publicKey;
 
+        AuthData authData;
+
         QString serverCountryCode;
         QString serverCountryName;