Fix Phone controls runtime accessibility

tests/quickshell/fixtures/PhoneControlsSystemSettings.qml

@@ -0,0 +1,13 @@
+pragma Singleton
+
+import QtQuick
+
+QtObject {
+    property bool bluebubblesAvailable: true
+    property int launchCount: 0
+
+    function openApplication(id: string): bool {
+        launchCount += 1;
+        return false;
+    }
+}