simplify things by moving popups into a new layer

modules/bar/WallPickerButton.qml

@@ -0,0 +1,24 @@
+import QtQuick
+import qs.widgets
+import qs.modules.Services
+import Quickshell
+
+
+BarComponent {
+    id: main
+    implicitWidth: implicitHeight
+    required property ShellScreen barScreen
+    StyledIcon {
+        iconName: "preferences-desktop-wallpaper-symbolic"
+        anchors.centerIn: parent
+    }
+    MouseArea {
+        id: clickHandler
+        anchors.fill: main
+        acceptedButtons: Qt.LeftButton
+        cursorShape: Qt.PointingHandCursor
+        onClicked: {
+            WidgetTracker.toggle("wallpapers", main.barScreen);
+        }
+    }
+}