make click on thumbnails work on wayland

winid on wayland is not an int, allow for that in
ToolTipwindowMouseArea
Never show the fallback icon on wayland

applets/taskmanager/package/contents/ui/ToolTipInstance.qml

@@ -181,6 +181,7 @@ ColumnLayout {
         }
 
         Loader {
+            id: pipeWireLoader
             anchors.fill: hoverHandler
             anchors.margins: 1
 
@@ -221,12 +222,12 @@ ColumnLayout {
             visible: available
         }
 
-        // when minimized, we don't have a preview, so show the icon
+        // when minimized, we don't have a preview on X11, so show the icon
         PlasmaCore.IconItem {
             width: parent.width
             height: thumbnailSourceItem.height
             anchors.horizontalCenter: parent.horizontalCenter
-            source: thumbnailSourceItem.isMinimized && !albumArtImage.visible ? icon : ""
+            source: thumbnailSourceItem.isMinimized && !albumArtImage.visible && Number.isInteger(thumbnailSourceItem.winId) ? icon : ""
             animated: false
             usesPlasmaTheme: false
             visible: valid

applets/taskmanager/package/contents/ui/ToolTipWindowMouseArea.qml

@@ -25,12 +25,13 @@ import org.kde.plasma.components 2.0 as PlasmaComponents
 
 MouseArea {
     property var modelIndex
-    property int winId // FIXME Legacy
+    // winId won't be an in in wayland
+    property var winId // FIXME Legacy
     property Item rootTask
 
     acceptedButtons: Qt.LeftButton | Qt.MiddleButton | Qt.RightButton
     hoverEnabled: true
-    enabled: winId != 0
+    enabled: winId !== 0
 
     onClicked: {
         if (mouse.button == Qt.LeftButton) {