service: account: Save user profile folder on first user creation

src/core/hle/service/acc/profile_manager.cpp

@@ -46,6 +46,7 @@ ProfileManager::ProfileManager() {
     // Create an user if none are present
     if (user_count == 0) {
         CreateNewUser(UUID::MakeRandom(), "yuzu");
+        WriteUserSaveFile();
     }
 
     auto current =