QuickSettings: added wallpaper selector to the defaults

Assets/settings-default.json

@@ -124,6 +124,9 @@
         },
         {
           "id": "PowerProfile"
+        },
+        {
+          "id": "WallpaperSelector"
         }
       ]
     }

Commons/Settings.qml

@@ -255,6 +255,8 @@ Singleton {
             "id": "ScreenRecorder"
           }, {
             "id": "PowerProfile"
+          }, {
+            "id": "WallpaperSelector"
           }]
       }
     }