PSP Networking refactor

src/dusklinux/system/systemlinux.h

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "system/system.h"
+
+/**
+ * Currently just returns SYSTEM_DIALOG_TYPE_NONE.
+ * 
+ * @return Currently open system dialog type.
+ */
+systemdialogtype_t systemGetActiveDialogTypeLinux();