Fix tests

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/features/feed-filtering/__tests__/feed-carousel.test.tsx

@@ -31,6 +31,7 @@ describe('<FeedCarousel />', () => {
               features: [],
             }),
           }),
+          configuration: ImmutableMap({}),
         },
       };
     });