editor: refactor workspace window synchronization

editor/app/Windowing/EditorWorkspaceWindowProjection.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include <XCEditor/Workspace/UIEditorWindowWorkspaceModel.h>
 #include <XCEngine/UI/Types.h>
 
 #include <string>
@@ -8,7 +7,6 @@
 namespace XCEngine::UI::Editor::App {
 
 struct EditorWorkspaceWindowProjection {
-    UIEditorWindowWorkspaceState windowState = {};
     ::XCEngine::UI::UISize minimumOuterSize = ::XCEngine::UI::UISize(640.0f, 360.0f);
     bool useDetachedTitleBarTabStrip = false;
     std::string tabStripTitleText = {};