Move QML files to src/qml and don't use internal qml modules

src/qml/Settings/ColorScheme.qml

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: 2020 Carl Schwan <carlschwan@kde.org>
+// SPDX-License-Identifier: LGPL-2.0-or-later
+
+import QtQuick 2.15
+import QtQuick.Controls 2.15 as QQC2
+import QtQuick.Layouts 1.15
+
+import org.kde.kirigami 2.15 as Kirigami
+
+import org.kde.neochat 1.0
+
+QQC2.ComboBox {
+    textRole: "display"
+    model: ColorSchemer.model
+    Component.onCompleted: currentIndex = ColorSchemer.indexForScheme(Config.colorScheme);
+    onActivated: {
+        ColorSchemer.apply(currentIndex);
+        Config.colorScheme = ColorSchemer.nameForIndex(currentIndex);
+        Config.save();
+    }
+}