fix(usediscover hook): fixing duplicate movies (#708)

fixing duplicate movies that can be returned from the tmdb api

src/hooks/useDiscover.ts

@@ -10,6 +10,7 @@ export interface BaseSearchResult<T> {
 }
 
 interface BaseMedia {
+  id: number;
   mediaType: string;
   mediaInfo?: {
     status: MediaStatus;
@@ -82,6 +83,8 @@ const useDiscover = <
     }
   );
 
+  const resultIds: Set<number> = new Set<number>();
+
   const isLoadingInitialData = !data && !error;
   const isLoadingMore =
     isLoadingInitialData ||
@@ -94,7 +97,18 @@ const useDiscover = <
     setSize(size + 1);
   };
 
-  let titles = (data ?? []).reduce((a, v) => [...a, ...v.results], [] as T[]);
+  let titles = (data ?? []).reduce((a, v) => {
+    const results: T[] = [];
+
+    for (const result of v.results) {
+      if (!resultIds.has(result.id)) {
+        resultIds.add(result.id);
+        results.push(result);
+      }
+    }
+
+    return [...a, ...results];
+  }, [] as T[]);
 
   if (settings.currentSettings.hideAvailable && hideAvailable) {
     titles = titles.filter(