update default filters
update default filters

Summary: Searchbar didn't update the filters when new default filters were added. This adds the new filters when they are added to the searchbar. Existing filters are not touched.

Reviewed By: passy

Differential Revision: D12999885

fbshipit-source-id: 51d9a1579724be2098b54161b39a0769180fb343

facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper