Refactor project structure and improve performance

Changed the `ProjectRepository` class to be static for easier usage.
Changed `ProjectService` constants to public properties for accessibility.
Changed `App.xaml` to consolidate theme resources into `Override.xaml`.
Changed `App.xaml.cs` to implement an `AppStateMachine` for better state management.
Changed `ConsolePage` and `HierarchyPage` to utilize the new ViewModel structure.
Changed `ProjectPage` to use the `ExplorerItem` model for asset display.
Changed `Entity` and `EntityManager` to enhance component management with a new `IComponentData` interface.
Changed the `Logger` class to introduce structured logging functionality.
Changed the system architecture to support dependency management for better organization.
Changed the `QueryEnumerable` class to allow for more flexible entity queries.
Changed the `TypeHandle` class to improve efficiency in retrieving type handles.
Changed the `World` class to support robust world management and multiple worlds.
Updated the `Test` class to demonstrate the new entity and component management system.

Ghost.Editor/Contracts/IAppState.cs

@@ -1,33 +0,0 @@
-using System.Threading.Tasks;
-
-namespace Ghost.Editor.Contracts;
-
-internal interface IAppState<Key>
-{
-    public Key StateKy
-    {
-        get;
-    }
-
-    /// <summary>
-    /// Called when exiting the state.
-    /// </summary>
-    public Task OnExitingAsync();
-
-    /// <summary>
-    /// Called when entering the state, right after OnEnteringAsync.
-    /// <paramref name="parameter">can be used to pass data into the state, such as a project to load.</summary>
-    /// </summary>
-    public Task OnEnteringAsync(object? parameter);
-
-    /// <summary>
-    /// Called when exiting the state, specifically for pose transitions.
-    /// </summary>
-    public Task OnExitedAsync();
-
-    /// <summary>
-    /// Called when entered the state, specifically after the state has been fully initialized and is ready for interaction.
-    /// </summary>
-    /// <param name="parameter">can be used to pass data into the state, such as a project to load.</param>
-    public Task OnEnteredAsync(object? parameter);
-}