Replace JSON.NET with System.Text.json (#840)

src/Artemis.UI.Shared/DefaultTypes/DataModel/Display/DefaultDataModelDisplayViewModel.cs

@@ -1,7 +1,8 @@
 using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 using Artemis.Core;
 using Artemis.UI.Shared.DataModelVisualization;
-using Newtonsoft.Json;
 
 namespace Artemis.UI.Shared.DefaultTypes.DataModel.Display;
 
@@ -11,16 +12,15 @@ namespace Artemis.UI.Shared.DefaultTypes.DataModel.Display;
 /// </summary>
 internal class DefaultDataModelDisplayViewModel : DataModelDisplayViewModel<object>
 {
-    private readonly JsonSerializerSettings _serializerSettings;
+    private readonly JsonSerializerOptions _serializerSettings;
     private string _display;
 
     public DefaultDataModelDisplayViewModel()
     {
-        _serializerSettings = new JsonSerializerSettings
-        {
-            ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
-            PreserveReferencesHandling = PreserveReferencesHandling.None
-        };
+        _serializerSettings = CoreJson.GetJsonSerializerOptions();
+        _serializerSettings.ReferenceHandler = ReferenceHandler.IgnoreCycles;
+        _serializerSettings.WriteIndented = true;
+
         _display = "null";
     }
 
@@ -35,7 +35,7 @@ internal class DefaultDataModelDisplayViewModel : DataModelDisplayViewModel<obje
         if (DisplayValue is Enum enumDisplayValue)
             Display = EnumUtilities.HumanizeValue(enumDisplayValue);
         else if (DisplayValue is not string)
-            Display = JsonConvert.SerializeObject(DisplayValue, _serializerSettings);
+            Display = JsonSerializer.Serialize(DisplayValue, _serializerSettings);
         else
             Display = DisplayValue?.ToString() ?? "null";
     }

src/Artemis.UI.Shared/Extensions/ClipboardExtensions.cs

@@ -24,6 +24,6 @@ public static class ClipboardExtensions
     public static async Task<T?> GetJsonAsync<T>(this IClipboard clipboard, string format)
     {
         byte[]? bytes = (byte[]?) await clipboard.GetDataAsync(format);
-        return bytes == null ? default : CoreJson.DeserializeObject<T>(Encoding.Unicode.GetString(bytes), true);
+        return bytes == null ? default : CoreJson.Deserialize<T>(Encoding.Unicode.GetString(bytes).TrimEnd('\0'));
     }
 }

src/Artemis.UI.Shared/Services/ProfileEditor/Commands/ResetLayerProperty.cs

@@ -32,12 +32,12 @@ public class ResetLayerProperty<T> : IProfileEditorCommand
     /// <inheritdoc />
     public void Execute()
     {
-        string json = CoreJson.SerializeObject(_layerProperty.DefaultValue, true);
+        string json = CoreJson.Serialize(_layerProperty.DefaultValue);
 
         if (_keyframesEnabled)
             _layerProperty.KeyframesEnabled = false;
 
-        _layerProperty.SetCurrentValue(CoreJson.DeserializeObject<T>(json)!);
+        _layerProperty.SetCurrentValue(CoreJson.Deserialize<T>(json)!);
     }
 
     /// <inheritdoc />