优化更新代码，添加界面功能并整合

WPFluent/Controls/BitmapIcon/BitmapImageProvider.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Threading.Tasks;
+using System.Windows.Media.Imaging;
+
+namespace WPFluent.Controls;
+
+internal class BitmapImageProvider(Uri path) : AnimationProvider(path)
+{
+    public override void Dispose()
+    {
+        ///
+    }
+
+    public override Task<BitmapSource> GetRenderedFrame(int index)
+    {
+        return Task.FromResult<BitmapSource>(new BitmapImage(Path));
+    }
+}