adds files & wallpaper switcher toolbar

.config/quickshell/own/GlobalStates.qml

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+// GlobalStates.qml - a place to store global state variables accessible from any QML file.
+pragma Singleton
+import Quickshell
+import QtQuick
+
+Singleton {
+    id: root
+
+    // Used by the merged overview module (own/modules/overview) — see own/modules/overview/CREDITS.md
+    property bool overviewOpen: false
+
+    readonly property QtObject popups: QtObject {
+        property string active:  ""
+        property real   anchorX: 0
+
+        function open(name, ax)   { popups.anchorX = ax ?? 0; popups.active = name }
+        function close()          { popups.active = "" }
+        function toggle(name, ax) {
+            if (popups.active === name) { popups.active = "" }
+            else { popups.anchorX = ax ?? 0; popups.active = name }
+        }
+    }
+}