Actually step for a time step so that the world will load (maybe).

plugin/controller/src/main/java/org/carlmontrobotics/deepbluesim/WebotsSupervisor.java

@@ -220,7 +220,7 @@ public void run() {
                                 reloadRequest);
                         robot.worldLoad(reloadRequest);
                         // Allow Webots to process the request.
-                        robot.step(0);
+                        robot.step(basicTimeStep);
                         LOG.log(Level.DEBUG, "Loaded world {0}", reloadRequest);
                     });
                 });