ULAYERS opens in a drawing without underlays; the ribbon runs ULAYERS

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/commands/display.rs

@@ -2051,7 +2051,7 @@ impl OpenCADStudio {
                 }
             }
 
-            "UNDERLAYLAYERS" | "ULAYERS" => self.open_underlay_layers_dialog(i),
+            "ULAYERS" => self.open_underlay_layers_dialog(i),
             "RECAP" | "SYNCPVIEWPORTS" => {
                 self.command_line
                     .push_info(crate::tf!("{cmd}: not yet implemented.").as_ref());