first commit

Nitrox.Launcher/Models/Converters/DeduplicateConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+
+namespace Nitrox.Launcher.Models.Converters;
+
+/// <summary>
+///     Removes duplicates by non-unique ToString values of the given list.
+/// </summary>
+public class DeduplicateConverter : Converter<DeduplicateConverter>
+{
+    public override object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (value is not IEnumerable<object> list)
+        {
+            return value;
+        }
+
+        return list.DistinctBy(i => i.ToString());
+    }
+}