internal: use panelwindow

Using WlrLayershell broke for newer versions of qs

modules/background/Background.qml

@@ -12,8 +12,8 @@ Variants {
 
         screen: modelData
         name: "background"
-        exclusionMode: ExclusionMode.Ignore
-        layer: WlrLayer.Background
+        WlrLayershell.exclusionMode: ExclusionMode.Ignore
+        WlrLayershell.layer: WlrLayer.Background
         color: "black"
 
         anchors.top: true

modules/drawers/Drawers.qml

@@ -25,8 +25,8 @@ Variants {
 
             screen: scope.modelData
             name: "drawers"
-            exclusionMode: ExclusionMode.Ignore
-            keyboardFocus: visibilities.launcher || visibilities.session ? WlrKeyboardFocus.OnDemand : WlrKeyboardFocus.None
+            WlrLayershell.exclusionMode: ExclusionMode.Ignore
+            WlrLayershell.keyboardFocus: visibilities.launcher || visibilities.session ? WlrKeyboardFocus.OnDemand : WlrKeyboardFocus.None
 
             mask: Region {
                 x: BorderConfig.thickness

widgets/StyledWindow.qml

@@ -1,10 +1,11 @@
 import "root:/utils"
 import "root:/config"
+import Quickshell
 import Quickshell.Wayland
 
-WlrLayershell {
+PanelWindow {
     required property string name
 
-    namespace: `caelestia-${name}`
+    WlrLayershell.namespace: `caelestia-${name}`
     color: "transparent"
 }