[MM-56651] fix: set cache duration (#26338)

* fix: set cache duration

* fix: extra 0

server/platform/shared/web/files.go

@@ -35,7 +35,7 @@ var MediaContentTypes = [...]string{
 }
 
 func WriteFileResponse(filename string, contentType string, contentSize int64, lastModification time.Time, webserverMode string, fileReader io.ReadSeeker, forceDownload bool, w http.ResponseWriter, r *http.Request) {
-	w.Header().Set("Cache-Control", "private, no-cache")
+	w.Header().Set("Cache-Control", "private, max-age=86400")
 	w.Header().Set("X-Content-Type-Options", "nosniff")
 
 	if contentSize > 0 {