HexEditor: Add BE decoding for UTF16String column in ValueInspector

Userland/Applications/HexEditor/HexEditorWidget.cpp

@@ -392,7 +392,9 @@ void HexEditorWidget::update_inspector_values(size_t position)
 
     // FIXME: Parse as other values like Timestamp etc
 
-    DeprecatedString utf16_string = TextCodec::decoder_for("utf-16le"sv)->to_utf8(StringView(selected_bytes.span())).release_value_but_fixme_should_propagate_errors().to_deprecated_string();
+    auto decoder = TextCodec::decoder_for(m_value_inspector_little_endian ? "utf-16le"sv : "utf-16be"sv);
+    DeprecatedString utf16_string = decoder->to_utf8(StringView(selected_bytes.span())).release_value_but_fixme_should_propagate_errors().to_deprecated_string();
+
     value_inspector_model->set_parsed_value(ValueInspectorModel::ValueType::UTF16String, utf16_string);
 
     m_value_inspector->set_model(value_inspector_model);