fix property changed signals firing multiple times

Modules/Launcher/CarouselView.qml

@@ -15,6 +15,10 @@ CarouselView {
 	readonly property var values: Wallpapers.query(root.search.text.split(" ").slice(1).join(" "))
 	required property var visibilities
 
+	currentIndex: {
+		const idx = Wallpapers.list.findIndex(w => w.path === Wallpapers.actualCurrent);
+		return idx >= 0 ? idx : 0;
+	}
 	delegateProperties: ({
 			visibilities: root.visibilities
 		})
@@ -41,13 +45,9 @@ CarouselView {
 		}
 	}
 
-	Component.onCompleted: {
-		const idx = Wallpapers.list.findIndex(w => w.path === Wallpapers.actualCurrent);
-		if (idx >= 0)
-			jumpToIndex(idx);
-	}
 	Component.onDestruction: Wallpapers.stopPreview()
-	onPreviewIndexChanged: (realIndex, modelData) => {
-		Wallpapers.preview(modelData.path);
+	onCurrentItemChanged: {
+		if (currentItem)
+			Wallpapers.preview(currentItem.modelData.path);
 	}
 }