Add Plasma task group shortcuts

plasma-task-group-shortcuts/taskselection.h

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <QModelIndex>
+#include <QVector>
+
+class QAbstractItemModel;
+
+QModelIndex taskToActivate(const QAbstractItemModel &model, int row, int cyclePosition);
+QVector<int> logicalTaskRows(const QAbstractItemModel &model, bool separateLaunchers);