Code clean up

Program.cs

@@ -1,5 +1,5 @@
-using Avalonia;
-using System;
+using System;
+using Avalonia;
 
 namespace GazpromApp;
 
@@ -7,7 +7,7 @@ sealed class Program
 {
     // Initialization code. Don't use any Avalonia, third-party APIs or any
     // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
-    // yet and stuff might break.
+    // yet, and stuff might break.
     [STAThread]
     public static void Main(string[] args) => BuildAvaloniaApp()
         .StartWithClassicDesktopLifetime(args);