Refactor project management and enhance architecture

Added a new static class `AssetsPath` for asset management.
Added a new icon file (`icon-256.ico`) for UI representation.
Added new package references to enhance functionality.
Added internals visibility attributes for better testing.
Added a new `EngineEditorViewModel` class for MVVM support.
Added a new `GameObject` class for component management.
Added a new `BitSet` class for efficient bit manipulation.
Added various utility classes to support the new entity system.

Changed the `ID` property in `ProjectInfo` to internal.
Changed the `AddProjectAsync` method to return the created `ProjectInfo`.
Changed the connection string retrieval method to use the new `Command` constant.
Changed the `DataPath` class to use `readonly` fields for folder paths.
Changed the `ActivationHandler` class to use new `DataPath` constants.
Changed the `OpenProjectPage` layout and interaction for better UI.

Updated the target framework to a newer version for compatibility.
Updated the `ProjectService` to use new constants from `DataPath`.
Updated the `World` class to improve entity management.

Refactored the `ProjectRepository` class to encapsulate SQL commands.
Refactored the `Transform` class to use properties for better encapsulation.

Ghost.Editor/ViewModel/Windows/EngineEditorViewModel.cs

@@ -0,0 +1,17 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using Ghost.Data.Models;
+using Ghost.Engine.Resources;
+
+namespace Ghost.Editor.ViewModel.Windows;
+
+internal partial class EngineEditorViewModel : ObservableRecipient
+{
+    public string engineVersionDescriptor = $"{EngineData.ENGINE_NAME} - {EngineData.ENGINE_VERSION}";
+
+    [ObservableProperty]
+    public partial ProjectInfo CurrentProject
+    {
+        get;
+        set;
+    }
+}