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-knotifications/source/src/imageconverter.h

@@ -0,0 +1,24 @@
+/*
+    SPDX-FileCopyrightText: 2009 Canonical
+    SPDX-FileContributor: Aurélien Gâteau <aurelien.gateau@canonical.com>
+
+    SPDX-License-Identifier: LGPL-2.0-only OR LGPL-3.0-only
+*/
+
+#ifndef IMAGECONVERTER_H
+#define IMAGECONVERTER_H
+
+class QVariant;
+class QImage;
+
+namespace ImageConverter
+{
+/**
+ * Returns a variant representing an image using the format describe in the
+ * freedesktop.org spec
+ */
+QVariant variantForImage(const QImage &image);
+
+} // namespace
+
+#endif /* IMAGECONVERTER_H */