Wallpaper: fix double wallpaper init.

Modules/Background/Background.qml

@@ -58,7 +58,6 @@ Variants {
         target: WallpaperService
         function onWallpaperChanged(screenName, path) {
           if (screenName === modelData.name) {
-
             // Update wallpaper display
             // Set wallpaper immediately on startup
             futureWallpaper = path

Services/WallpaperService.qml

@@ -79,14 +79,12 @@ Singleton {
 
     translateModels()
 
-    // Rebuild cache from persisted settings
-    var monitors = Settings.data.wallpaper.monitors || []
+    // Rebuild cache from settings
     currentWallpapers = ({})
+    var monitors = Settings.data.wallpaper.monitors || []
     for (var i = 0; i < monitors.length; i++) {
       if (monitors[i].name && monitors[i].wallpaper) {
         currentWallpapers[monitors[i].name] = monitors[i].wallpaper
-        // Notify listeners so Background updates immediately after settings load
-        root.wallpaperChanged(monitors[i].name, monitors[i].wallpaper)
       }
     }