New: Add rating as option in sort dropdown on series overviews and posters views

(cherry picked from commit 31bf9e313e6a376f6ef3c46d53e2450088041033)

frontend/src/Author/Index/Menus/AuthorIndexSortMenu.js

@@ -126,6 +126,15 @@ function AuthorIndexSortMenu(props) {
         >
           Size on Disk
         </SortMenuItem>
+
+        <SortMenuItem
+          name="ratings"
+          sortKey={sortKey}
+          sortDirection={sortDirection}
+          onPress={onSortSelect}
+        >
+          {translate('Rating')}
+        </SortMenuItem>
       </MenuContent>
     </SortMenu>
   );