refactor: iwyu (#3525)

gtk/MakeDialog.cc

@@ -4,6 +4,7 @@
 // License text can be found in the licenses/ folder.
 
 #include <iostream>
+#include <list>
 #include <memory>
 #include <string>
 
@@ -560,4 +561,4 @@ void MakeDialog::Impl::onPieceSizeUpdated()
         tr_metaInfoBuilderSetPieceSize(builder_.get(), new_size);
         updatePiecesLabel();
     }
-}
+}