add persistent_settings_selectors to the webapp/selectors

Author: roseayeon

tensorboard/webapp/BUILD

@@ -57,6 +57,7 @@ tf_ng_module(
         "//tensorboard/webapp/notification_center/_redux",
         "//tensorboard/webapp/runs/store:selectors",
         "//tensorboard/webapp/util:ui_selectors",
+        "//tensorboard/webapp/persistent_settings/_redux",
     ],
 )
 

tensorboard/webapp/selectors.ts

@@ -21,3 +21,4 @@ export * from './metrics/store/metrics_selectors';
 export * from './notification_center/_redux/notification_center_selectors';
 export * from './runs/store/runs_selectors';
 export * from './util/ui_selectors';
+export * from './persistent_settings/_redux/persistent_settings_selectors';