Introduced Notification server, and added background thorugh quickshell

osd/NotificationPanel.qml

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+import QtQuick
+import QtQuick.Layouts
+import Quickshell
+import Quickshell.Wayland
+import Quickshell.Services.Notifications
+import qs
+import qs.common
+
+Scope {
+  id: root
+  property bool visible: false
+  property int panelWidth: 350
+
+  Loader {
+    id: notificationPanelLoader
+    active: GlobalStates.notificationPanelOpen
+    /**
+    onActiveChanged: {
+      if (!notificationPanelLoader.active & NotificationServer.amountNotifications == 0) {
+        GlobalStates.notificationPanelOpen = false;
+      }
+    }
+    //*/
+
+    sourceComponent: PanelWindow {
+      id: notificationPanelRoot
+      visible: true
+
+      exclusionMode: ExclusionMode.Ignore
+      exclusiveZone: 0
+
+      implicitWidth: root.panelWidth
+
+
+      anchors {
+        top: true
+        right: true
+        bottom: true
+      }
+      margins {
+        top: Config.options.bar.height
+      }
+
+      Rectangle {
+        anchors {
+          fill: parent
+          margins: Config.options.bar.cornerStyle === 1 ? (Appearance.sizes.hyprlandGapsOut) : 0
+        }
+        color: Config.options.bar.showBackground ? Appearance.colors.colLayer1 : "transparent"
+      }
+
+      ColumnLayout {
+        id: notifs
+        anchors.margins: 4
+        anchors.left: parent.left
+        anchors.right: parent.right
+        Repeater {
+          model: NotificationService.notifications
+          NotificationItem {
+            required property Notification modelData
+            notif: modelData
+            textWidth: root.panelWidth - 14
+            notificationRounding: Appearance.rounding.unsharpenmore
+          }
+        }
+      }
+    }
+  }
+}