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-kio/source/tests/kfilewidgettest_saving_gui.cpp

@@ -0,0 +1,63 @@
+/*
+    This file is part of the KDE libraries
+    SPDX-FileCopyrightText: 2019 Méven Car <meven.car@kdemail.net>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#include <KFileWidget>
+#include <QApplication>
+#include <QCommandLineOption>
+#include <QCommandLineParser>
+#include <QDebug>
+#include <QPushButton>
+#include <QUrl>
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+
+    // Do some args
+    QCommandLineParser parser;
+    parser.addOption(QCommandLineOption(QStringLiteral("multiple"), QStringLiteral("Allows multiple files selection")));
+    parser.addPositionalArgument(QStringLiteral("folder"), QStringLiteral("The initial folder"));
+    parser.process(app);
+    QStringList posargs = parser.positionalArguments();
+
+    QUrl folder = QUrl(QStringLiteral("kfiledialog:///SaveDialog"));
+    if (!posargs.isEmpty()) {
+        folder = QUrl::fromUserInput(posargs.at(0));
+    }
+    qDebug() << "Starting at" << folder;
+    KFileWidget *fileWidget = new KFileWidget(folder);
+    fileWidget->setOperationMode(KFileWidget::Saving);
+    if (parser.isSet(QStringLiteral("multiple"))) {
+        fileWidget->setMode(KFile::Files);
+    } else {
+        fileWidget->setMode(KFile::File);
+    }
+    fileWidget->setAttribute(Qt::WA_DeleteOnClose);
+
+    fileWidget->okButton()->show();
+    fileWidget->cancelButton()->show();
+    app.connect(fileWidget->okButton(), &QPushButton::clicked, fileWidget, &KFileWidget::slotOk);
+    app.connect(fileWidget->cancelButton(), &QPushButton::clicked, fileWidget, [&app, fileWidget]() {
+        qDebug() << "canceled";
+        fileWidget->slotCancel();
+        app.exit();
+    });
+
+    app.connect(fileWidget, &KFileWidget::accepted, fileWidget, [&app, fileWidget]() {
+        qDebug() << "accepted";
+        fileWidget->accept();
+        qDebug() << "Selected File:" << fileWidget->selectedFile();
+        qDebug() << "Selected Url:" << fileWidget->selectedUrl();
+        qDebug() << "Selected Files:" << fileWidget->selectedFiles();
+        qDebug() << "Selected Urls:" << fileWidget->selectedUrls();
+        app.exit();
+    });
+
+    fileWidget->show();
+
+    return app.exec();
+}