fix: do not quit automatically when last window is "closed"

Qt confuses closed and hidden

bec_widgets/cli/server.py

@@ -212,6 +212,7 @@ def main():
     with redirect_stdout(SimpleFileLikeFromLogOutputFunc(logger.info)):
         with redirect_stderr(SimpleFileLikeFromLogOutputFunc(logger.error)):
             app = QApplication(sys.argv)
+            app.setQuitOnLastWindowClosed(False)
             app.setApplicationName("BEC Figure")
             module_path = os.path.dirname(bec_widgets.__file__)
             icon = QIcon()

tests/end-2-end/test_bec_dock_rpc_e2e.py

@@ -145,7 +145,6 @@ def test_dock_manipulations_e2e(rpc_server_dock):
 
     d2.remove()
     dock_config = dock._config_dict
-    assert len(dock_config["docks"]) == 2
 
     assert ["dock_0", "dock_1"] == list(dock_config["docks"])