Applied codestyle to all .cs files

src/NadekoBot/Common/AsyncLazy.cs

@@ -1,4 +1,4 @@
-#nullable disable
+#nullable disable
 using System.Runtime.CompilerServices;
 
 namespace NadekoBot.Common;
@@ -17,4 +17,4 @@ public class AsyncLazy<T> : Lazy<Task<T>>
 
     public TaskAwaiter<T> GetAwaiter()
         => Value.GetAwaiter();
-}
+}