fix: prefetch media warning

This is due to the "audio" and "video" preload having limited support in
browsers.

js/src/hooks/use-prefetch-adjacent-media.ts

@@ -25,7 +25,6 @@ export function usePrefetchAdjacentMedia(
 
     for (const particle of mediaParticles) {
       const objectId = particle.properties.object_id;
-      const isAudio = particle.properties.mime_type?.startsWith("audio/");
 
       queryClient
         .prefetchQuery({
@@ -39,7 +38,7 @@ export function usePrefetchAdjacentMedia(
             objectId,
           ]);
           if (url) {
-            preload(url, { as: isAudio ? "audio" : "video" });
+            preload(url, { as: "fetch", crossOrigin: "anonymous" });
           }
         });
     }