Port to declarative type registration

src/qml/AboutKDE.qml

@@ -0,0 +1,8 @@
+// SPDX-FileCopyrightText: 2023 Joshua Goins <josh@redstrate.com>
+// SPDX-License-Identifier: LGPL-2.0-or-later
+
+import org.kde.kirigamiaddons.formcard as FormCard
+
+FormCard.AboutKDE {
+    title: i18nc("@title:window", "About KDE")
+}