fix bug with new enum names

frontend/src/components/sidebar.tsx

@@ -122,19 +122,19 @@ export default function Sidebar(props : SidebarProps) {
 
 const sortingOptions = [
     {
-        value: 'rating-desc',
+        value: 'RatingDescending',
         name: 'Rating (descending)'
     },
     {
-        value: 'rating-asc',
+        value: 'RatingAscending',
         name: 'Rating (ascending)'
     },
     {
-        value: 'alphabet-asc',
+        value: 'AlphabetAscending',
         name: 'Alphabetical (ascending)'
     },
     {
-        value: 'alphabet-desc',
+        value: 'AlphabetDescending',
         name: 'Alphabetical (descending)'
     }
 ]