[FancyZones] Window switch shortcut fix (#21426)

* rename Layout -> LayoutData

* simplify zone

* split ZoneSet: Layout

* refactoring

* split ZoneSet: LayoutWindows

* update trace

* split ZoneSet: remove ZoneSet

* fix initialization

* split unit tests

* remove unused

* warning

* nullptr  check

* use current rect

* update work area tests

* use current rect

* simplify

* more meaningful name

* dismiss

* safety checks

* resolve conflicts

* reassign windows after switching vd

* avoid double-processing for window on switching vd

* extend windows fix

* check if window is on current desktop before cycling

* separated extend

* not reinit layout windows

src/modules/fancyzones/FancyZonesLib/Layout.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#include <FancyZonesLib/FancyZonesData/LayoutData.h>
+#include <FancyZonesLib/util.h>
+
+#include <FancyZonesLib/LayoutConfigurator.h> // ZonesMap
+
+class Layout
+{
+public:
+    Layout(const LayoutData& data);
+    ~Layout() = default;
+
+    bool Init(const FancyZonesUtils::Rect& workAreaRect, HMONITOR monitor) noexcept;
+
+    GUID Id() const noexcept;
+    FancyZonesDataTypes::ZoneSetLayoutType Type() const noexcept;
+
+    const ZonesMap& Zones() const noexcept;
+    ZoneIndexSet ZonesFromPoint(POINT pt) const noexcept;
+    /**
+     * Returns all zones spanned by the minimum bounding rectangle containing the two given zone index sets.
+     */
+    ZoneIndexSet GetCombinedZoneRange(const ZoneIndexSet& initialZones, const ZoneIndexSet& finalZones) const noexcept; 
+
+    RECT GetCombinedZonesRect(const ZoneIndexSet& zones);
+
+private:
+    const LayoutData m_data;
+    ZonesMap m_zones{};
+};