Migrating to modern c# namespace

Using the short namesapce declaration for conciseness

Models/SongResult.cs

@@ -2,13 +2,12 @@ using System;
 
 using Newtonsoft.Json;
 
-namespace Icarus.Models
+namespace Icarus.Models;
+
+public class SongResult
 {
-    public class SongResult
-    {
-        [JsonProperty("message")]
-        public string Message { get; set; }
-        [JsonProperty("song_title")]
-        public string SongTitle { get; set; }
-    }
+    [JsonProperty("message")]
+    public string Message { get; set; }
+    [JsonProperty("song_title")]
+    public string SongTitle { get; set; }
 }