Changed so that announcement and book do not show things that haven't been released yet !

src/lib/api.tsx

@@ -80,12 +80,12 @@ export async function fetchFromAPI<T>(
  * Populates optional fields like Chapters or Editors based on requirements.
  */
 export async function fetchBooks(): Promise<Book[]> {
-  const data = await fetchFromAPI<Book>("/api/books?populate=cover&sort[title]=asc");
+  const data = await fetchFromAPI<Book>(`/api/books?populate=cover&sort[title]=asc&filters[release_datetime][$lte]=${new Date().toISOString()}`);
   return data;
 }
 
 export async function fetchAnnouncements(): Promise<Announcement[]> {
-  const data = await fetchFromAPI<Announcement>("/api/announcements?");
+  const data = await fetchFromAPI<Announcement>(`/api/announcements?filters[datetime][$lte]=${new Date().toISOString()}&sort[datetime]=desc`);
   return data;
 }