Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-kwidgetsaddons/source/tests/kmessageboxwidtest.cpp

@@ -0,0 +1,35 @@
+/*
+    This file is part of the KDE libraries
+    SPDX-FileCopyrightText: 2013 Aurélien Gâteau <agateau@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+#include <iostream>
+
+#include <kmessagebox.h>
+
+#include <QApplication>
+
+int main(int argc, char **argv)
+{
+    QApplication::setApplicationName(QStringLiteral("kmessageboxwidtest"));
+    QApplication app(argc, argv);
+    if (argc != 2) {
+        std::cerr << "Usage: " << qPrintable(QApplication::applicationName()) << " <window id>\n";
+        std::cerr << '\n';
+        std::cerr << "You can get a window id using a tool like `xwininfo`.\n";
+        return 1;
+    }
+
+    bool ok;
+    int winId = QByteArray(argv[1]).toInt(&ok, 0);
+    if (!ok) {
+        std::cerr << '"' << argv[1] << "\" is not a number\n";
+        return 1;
+    }
+
+    int ret = KMessageBox::warningContinueCancelWId(winId, QStringLiteral("Are you sure you want to continue?"), QStringLiteral("Dangerous stuff"));
+
+    std::cout << "Returned " << ret << '\n';
+    return ret;
+}