[FancyZones] Only process windows located on currently active work area when moving them (#2691)

* Only process windows located on currently active work area when moving them.

* Move all editor exit handling into dedicated method.

src/modules/fancyzones/lib/ZoneWindow.cpp

@@ -233,6 +233,8 @@ public:
     ShowZoneWindow() noexcept;
     IFACEMETHODIMP_(void)
     HideZoneWindow() noexcept;
+    IFACEMETHODIMP_(void)
+    UpdateActiveZoneSet() noexcept;
 
 protected:
     static LRESULT CALLBACK s_WndProc(HWND window, UINT message, WPARAM wparam, LPARAM lparam) noexcept;
@@ -536,6 +538,12 @@ ZoneWindow::HideZoneWindow() noexcept
     }
 }
 
+IFACEMETHODIMP_(void)
+ZoneWindow::UpdateActiveZoneSet() noexcept
+{
+    CalculateZoneSet();
+}
+
 #pragma region private
 
 void ZoneWindow::LoadSettings() noexcept