fixed the issue where two output windows were showing when running the IBM QPU backend in the EM app

em/ui.py

@@ -586,7 +586,7 @@ def _build_output_config_card():
 def _build_main_plot_area():
     """Build the main plot area (PyVista for Simulator)."""
     with vuetify3.VCard(
-        v_if="geometry_selection && ((backend_type !== 'QPU' && !(backend_type === 'Simulator' && selected_simulator === 'Statevector Estimator')) || !qpu_ts_ready)",
+        v_if="geometry_selection && ((backend_type !== 'QPU' && !(backend_type === 'Simulator' && selected_simulator === 'Statevector Estimator')) || !qpu_ts_ready) && !(is_running && (backend_type === 'QPU' || (backend_type === 'Simulator' && selected_simulator === 'Statevector Estimator')))",
         classes="mb-1 flex-grow-1 d-flex flex-column",
         style="min-height: 0;",
     ):