Add ability to trim and untrim XCI files from the application context menu AND in Bulk (#105)

src/Ryujinx/UI/Helpers/XCITrimmerFileStatusDetailConverter.cs

@@ -0,0 +1,42 @@
+using Avalonia;
+using Avalonia.Data;
+using Avalonia.Data.Converters;
+using Ryujinx.UI.Common.Models;
+using System;
+using System.Globalization;
+using static Ryujinx.Common.Utilities.XCIFileTrimmer;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class XCITrimmerFileStatusDetailConverter : IValueConverter
+    {
+        public static XCITrimmerFileStatusDetailConverter Instance = new();
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is UnsetValueType)
+            {
+                return BindingOperations.DoNothing;
+            }
+
+            if (!targetType.IsAssignableFrom(typeof(string)))
+            {
+                return null;
+            }
+
+            if (value is not XCITrimmerFileModel app)
+            {
+                return null;
+            }
+
+            return app.PercentageProgress != null ? null :
+                app.ProcessingOutcome != OperationOutcome.Successful && app.ProcessingOutcome != OperationOutcome.Undetermined ? app.ProcessingOutcome.ToLocalisedText() :
+                null;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotSupportedException();
+        }
+    }
+}