Fixed loading series list and custom filters

Fixed: Loading series list
Fixed: Adding new custom filter

Closes #5430

frontend/src/Series/Index/Posters/SeriesIndexPoster.tsx

@@ -52,7 +52,7 @@ function SeriesIndexPoster(props: SeriesIndexPosterProps) {
     path,
     titleSlug,
     nextAiring,
-    statistics,
+    statistics = {},
     images,
   } = series;
 

frontend/src/Series/Index/SeriesIndexFilterModal.tsx

@@ -15,9 +15,9 @@ function createSeriesSelector() {
 
 function createFilterBuilderPropsSelector() {
   return createSelector(
-    (state) => state.series.items,
-    (series) => {
-      return series;
+    (state) => state.seriesIndex.filterBuilderProps,
+    (filterBuilderProps) => {
+      return filterBuilderProps;
     }
   );
 }