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.Engine/Models/LogMessage.cs

@@ -0,0 +1,56 @@
+using System.Diagnostics;
+
+namespace Ghost.Engine.Models;
+
+public enum LogLevel
+{
+    Info,
+    Warning,
+    Error
+}
+
+internal class LogMessage
+{
+    public LogLevel Level
+    {
+        get; set;
+    }
+
+    public string Message
+    {
+        get; set;
+    }
+
+    public StackTrace? StackTrace
+    {
+        get; set;
+    }
+
+    public DateTime Timestamp
+    {
+        get; set;
+    }
+
+    public LogMessage(LogLevel level, string message, StackTrace? stackTrace = null)
+    {
+        Level = level;
+        Message = message;
+        StackTrace = stackTrace;
+        Timestamp = DateTime.Now;
+    }
+
+    public override string ToString()
+    {
+        return $"{Timestamp:HH:mm:ss} [{Level}] {Message}";
+    }
+
+    public string ToStringWithStackTrace()
+    {
+        if (StackTrace == null)
+        {
+            return ToString();
+        }
+
+        return $"{ToString()}\n{StackTrace}";
+    }
+}