misc: Use nint/nuint instead of IntPtr/UIntPtr

src/Ryujinx.HLE/HOS/Services/Sockets/Bsd/ISocket.cs

@@ -16,7 +16,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
         ProtocolType ProtocolType { get; }
 
-        IntPtr Handle { get; }
+        nint Handle { get; }
 
         LinuxError Receive(out int receiveSize, Span<byte> buffer, BsdSocketFlags flags);
 

src/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Impl/ManagedSocket.cs

@@ -22,7 +22,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd.Impl
 
         public bool Blocking { get => Socket.Blocking; set => Socket.Blocking = value; }
 
-        public IntPtr Handle => IntPtr.Zero;
+        public nint Handle => nint.Zero;
 
         public IPEndPoint RemoteEndPoint => Socket.RemoteEndPoint as IPEndPoint;