[FancyZones] Feature to create zone layouts spanning multiple monitors (#5289)

* Added the setting

* Added a property to Editor Settings

This will be used later

* Fixed a bug in the previous commit

* Simplified a method

* Added snapping points to the editor

* Simplified a method in ZoneSet

* Updated ZoneSet testcases

* Add a method to FancyZones / ZoneWindowHost

* Almost works

* The editor now launches, but FZ does not understand the results

* Refactored some code

* Snapping to a zone by dragging seems to work

* Hotkeys seem to work

* Refresh the work area handler after changing settings

* Fixed zones not snapping to monitor edges when moved

* Remove unused method in FancyZones.h

* Fixed an issue with DPI awareness

* Renamed setting to spanZonesAcrossMonitors

* Renamed a function

* Fixed a bug with the magnetic effect

* Fix restoring window positions on layout changes

src/core/Microsoft.PowerToys.Settings.UI.Lib/FZConfigProperties.cs

@@ -24,6 +24,7 @@ namespace Microsoft.PowerToys.Settings.UI.Lib
             FancyzonesRestoreSize = new BoolProperty();
             UseCursorposEditorStartupscreen = new BoolProperty(ConfigDefaults.DefaultUseCursorposEditorStartupscreen);
             FancyzonesShowOnAllMonitors = new BoolProperty();
+            FancyzonesSpanZonesAcrossMonitors = new BoolProperty();
             FancyzonesZoneHighlightColor = new StringProperty(ConfigDefaults.DefaultFancyZonesZoneHighlightColor);
             FancyzonesHighlightOpacity = new IntProperty(50);
             FancyzonesEditorHotkey = new KeyboardKeysProperty(DefaultHotkeyValue);
@@ -66,6 +67,9 @@ namespace Microsoft.PowerToys.Settings.UI.Lib
         [JsonPropertyName("fancyzones_show_on_all_monitors")]
         public BoolProperty FancyzonesShowOnAllMonitors { get; set; }
 
+        [JsonPropertyName("fancyzones_span_zones_across_monitors")]
+        public BoolProperty FancyzonesSpanZonesAcrossMonitors { get; set; }
+
         [JsonPropertyName("fancyzones_makeDraggedWindowTransparent")]
         public BoolProperty FancyzonesMakeDraggedWindowTransparent { get; set; }