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

src/qml/Page/RoomWindow.qml

@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: 2020 Carl Schwan <carl@carlschwan.eu>
+// SPDX-License-Identifier: GPL-3.0-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
+
+Kirigami.ApplicationWindow {
+    id: window
+    required property var currentRoom
+    minimumWidth: Kirigami.Units.gridUnit * 10
+    minimumHeight: Kirigami.Units.gridUnit * 15
+
+    Shortcut {
+        sequence: StandardKey.Cancel
+        onActivated: window.close()
+    }
+    pageStack.initialPage: RoomPage {
+        visible: true
+        currentRoom: window.currentRoom
+        disableCancelShortcut: true
+    }
+}