Clear spotlight searchView after choosing a room

app/src/main/java/chat/rocket/android/fragment/sidebar/SidebarMainFragment.java

@@ -151,6 +151,7 @@ public class SidebarMainFragment extends AbstractFragment implements SidebarMain
     adapter.setOnItemClickListener(new RoomListAdapter.OnItemClickListener() {
       @Override
       public void onItemClick(RoomSidebar roomSidebar) {
+        searchView.setQuery(null, false);
         searchView.clearFocus();
         presenter.onRoomSelected(roomSidebar);
       }