Fixes for joystick event handling in QML

This update changes the method signatures for "onAxisValueChanged", "onRawButtonPressedChanged", and "onAxisValues" events in QML according to Qt6 requirements. Each event now directly accepts the necessary arguments.

src/VehicleSetup/JoystickConfigButtons.qml

@@ -27,7 +27,7 @@ ColumnLayout {
     
     Connections {
         target: _activeJoystick
-        onRawButtonPressedChanged: {
+        onRawButtonPressedChanged: (index, pressed) => {
             if (buttonActionRepeater.itemAt(index)) {
                 buttonActionRepeater.itemAt(index).pressed = pressed
             }
@@ -40,7 +40,6 @@ ColumnLayout {
     ColumnLayout {
         id:         flowColumn
         width:      parent.width
-        anchors.centerIn:   parent
         spacing:    ScreenTools.defaultFontPixelHeight
 
         // Note for reminding the use of multiple buttons for the same action

src/VehicleSetup/JoystickConfigCalibration.qml

@@ -99,7 +99,7 @@ Item {
                 anchors.verticalCenter: parent.verticalCenter
                 Connections {
                     target: controller
-                    onAxisValueChanged: {
+                    onAxisValueChanged: (axis, value) => {
                         if (axisMonitorRepeater.itemAt(axis)) {
                             axisMonitorRepeater.itemAt(axis).axis.axisValue = value
                         }

src/VehicleSetup/JoystickConfigGeneral.qml

@@ -211,7 +211,7 @@ Item {
 
                     Connections {
                         target:             _activeJoystick
-                        onAxisValues: {
+                        onAxisValues: (roll, pitch, yaw, throttle) => {
                             rollAxis.axisValue      = roll  * 32768.0
                             pitchAxis.axisValue     = pitch * 32768.0
                             yawAxis.axisValue       = yaw   * 32768.0