Migrate friends service to new IPC (#6174)

* Migrate friends service to new IPC

* Add a note that the pointer buffer size and domain counts are wrong

* Wrong length

* Format whitespace

* PR feedback

* Fill in structs from PR feedback

* Missed that one

* Somehow forgot to save that one

* Fill in enums from PR review

* Language enum, NotificationTime

* Format whitespace

* Fix the warning

src/Ryujinx.Horizon/Sdk/Friends/Url.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Ryujinx.Horizon.Sdk.Friends
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0xA0, Pack = 0x1)]
+    struct Url
+    {
+        public UrlStorage Path;
+
+        [InlineArray(0xA0)]
+        public struct UrlStorage
+        {
+            public byte Value;
+        }
+
+        public override readonly string ToString()
+        {
+            int length = ((ReadOnlySpan<byte>)Path).IndexOf((byte)0);
+            if (length < 0)
+            {
+                length = 33;
+            }
+
+            return Encoding.UTF8.GetString(((ReadOnlySpan<byte>)Path)[..length]);
+        }
+    }
+}