Don't queue a configuration update when the project is disposed, e.g. when replacing current project with a new one that is opened in the same window (#164)

Author: jimkyndemeyer

src/main/com/intellij/lang/jsgraphql/ide/project/graphqlconfig/GraphQLConfigManager.java

@@ -489,7 +489,9 @@ public void run(@NotNull ProgressIndicator indicator) {
                     });
                 }
             };
-            ProgressManager.getInstance().run(task);
+            if (!myProject.isDisposed()) {
+                ProgressManager.getInstance().run(task);
+            }
         }, ModalityState.NON_MODAL);
     }