Re-implement changes in the previous commit

DiscordChatExporter.Cli/Commands/Converters/TruthyBooleanBindingConverter.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Globalization;
+using CliFx.Extensibility;
+
+namespace DiscordChatExporter.Cli.Commands.Converters;
+
+internal class TruthyBooleanBindingConverter : BindingConverter<bool>
+{
+    public override bool Convert(string? rawValue)
+    {
+        // Null is still considered true, to match the base behavior
+        if (rawValue is null)
+            return true;
+
+        if (string.IsNullOrWhiteSpace(rawValue))
+            return false;
+
+        if (bool.TryParse(rawValue, out var boolValue))
+            return boolValue;
+
+        if (int.TryParse(rawValue, CultureInfo.InvariantCulture, out var intValue) && intValue == 0)
+            return false;
+
+        return true;
+    }
+}