Use go functions instead of the worker pool

internal/torrent/refresh.go

@@ -107,7 +107,7 @@ func (t *TorrentManager) refreshTorrents(isInitialRun bool) []string {
 
 // StartRefreshJob periodically refreshes the torrents
 func (t *TorrentManager) StartRefreshJob() {
-	_ = t.workerPool.Submit(func() {
+	go func() {
 		t.log.Info("Starting periodic refresh job")
 		refreshTicker := time.NewTicker(time.Duration(t.Config.GetRefreshEverySecs()) * time.Second)
 		defer refreshTicker.Stop()
@@ -131,7 +131,7 @@ func (t *TorrentManager) StartRefreshJob() {
 				return
 			}
 		}
-	})
+	}()
 }
 
 // getMoreInfo gets original name, size and files for a torrent