Remove QML Qt5/Qt6 compatibility hacks

src/qml/Component/Timeline/AudioDelegate.qml

@@ -4,7 +4,7 @@
 import QtQuick 2.15
 import QtQuick.Controls 2.15 as QQC2
 import QtQuick.Layouts 1.15
-import QtMultimedia @QTMULTIMEDIA_MODULE_QML_VERSION@ 
+import QtMultimedia
 
 import org.kde.kirigami 2.15 as Kirigami
 
@@ -42,10 +42,9 @@ TimelineContainer {
         Layout.fillWidth: true
         Layout.maximumWidth: root.contentMaxWidth
 
-        @QTMULTIMEDIA_AUDIO@ {
+        MediaPlayer {
             id: audio
             source: root.progressInfo.localPath
-            @QTMULTIMEDIA_AUDIO_AUTOLOAD@
         }
 
         states: [

src/qml/Component/Timeline/OsmLocationPlugin.qml

@@ -3,8 +3,8 @@
 
 pragma Singleton
 
-import QtQuick @QTQUICK_MODULE_QML_VERSION@
-import QtLocation @QTLOCATION_MODULE_QML_VERSION@
+import QtQuick
+import QtLocation
 
 QtObject {
     property var plugin: Plugin {

src/qml/Component/Timeline/VideoDelegate.qml

@@ -4,7 +4,7 @@
 import QtQuick 2.15
 import QtQuick.Controls 2.15 as QQC2
 import QtQuick.Layouts 1.15
-import QtMultimedia @QTMULTIMEDIA_MODULE_QML_VERSION@ 
+import QtMultimedia
 import Qt.labs.platform 1.1 as Platform
 
 import org.kde.kirigami 2.13 as Kirigami
@@ -73,7 +73,6 @@ TimelineContainer {
         Layout.preferredHeight: mediaSizeHelper.currentSize.height
 
         fillMode: VideoOutput.PreserveAspectFit
-        @QTMULTIMEDIA_VIDEO_FLUSHMODE@
 
         states: [
             State {

src/qml/Dialog/PowerLevelDialog.qml

@@ -17,7 +17,7 @@ Kirigami.OverlaySheet {
     property var userId
     property int powerLevel
 
-    @OVERLAYSHEET_OPEN@: {
+    onOpened: {
         if (sheetOpen) {
             powerLevelComboBox.currentIndex = powerLevelComboBox.indexOfValue(root.powerLevel)
         }