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

src/qml/Component/Timeline/SectionDelegate.qml

@@ -0,0 +1,17 @@
+// SPDX-FileCopyrightText: 2019 Black Hat <bhat@encom.eu.org>
+// SPDX-FileCopyrightText: 2020 Carl Schwan <carl@carlschwan.eu>
+// SPDX-License-Identifier: GPL-3.0-only
+
+import QtQuick 2.15
+
+import org.kde.kirigami 2.15 as Kirigami
+
+Kirigami.Heading {
+    level: 4
+    text: model.showSection ? section : ""
+    color: Kirigami.Theme.disabledTextColor
+    horizontalAlignment: Text.AlignHCenter
+    verticalAlignment: Text.AlignVCenter
+    topPadding: Kirigami.Units.largeSpacing * 2
+    bottomPadding: Kirigami.Units.smallSpacing
+}