wallpaper suport and polishing

modules/Bar/Bar.qml

@@ -9,6 +9,7 @@ Variants {
     delegate: PanelWindow {
         id: root
         required property ShellScreen modelData
+	aboveWindows: true
         margins {
             top: Settings.config.floating ? Settings.config.margins : 0
             left: Settings.config.floating ? Settings.config.margins : 0

modules/wallpaper/Wallpaper.qml

@@ -0,0 +1,27 @@
+import Quickshell
+import QtQuick
+import qs
+import qs.settings
+import Quickshell.Wayland
+
+Variants {
+    model: Quickshell.screens
+    delegate: WlrLayershell {
+        exclusionMode: ExclusionMode.Ignore
+	aboveWindows: false
+        id: wallpaperShell
+        required property ShellScreen modelData
+        layer: WlrLayer.Background
+        anchors {
+            top: true
+            bottom: true
+            left: true
+            right: true
+        }
+        Image {
+            id: wallpaper
+            source: Settings.config.currentWall ? Settings.config.currentWall : ""
+            anchors.fill: parent
+        }
+    }
+}

settings/Settings.qml

@@ -18,6 +18,7 @@ Singleton {
             property string font
             property int fontSize
             property int margins
+	    property var currentWall
         }
     }
 }

shell.qml

@@ -3,9 +3,11 @@ import Quickshell
 import QtQuick
 import qs.modules.Bar
 import qs.modules.ipc
+import qs.modules.wallpaper
 
 ShellRoot {
     id: root
     Bar {}
     Ipc {}
+    Wallpaper {}
 }