Bump the number of simultaneous workers

We're in 2024, I'm pretty sure we can afford to have 16 simultaneous open http
connections at the same time, instead of only 5.

internal/config/options.go

@@ -27,7 +27,7 @@ const (
 	defaultBaseURL                            = "http://localhost"
 	defaultRootURL                            = "http://localhost"
 	defaultBasePath                           = ""
-	defaultWorkerPoolSize                     = 5
+	defaultWorkerPoolSize                     = 16
 	defaultPollingFrequency                   = 60
 	defaultForceRefreshInterval               = 30
 	defaultBatchSize                          = 100

miniflux.1

@@ -165,7 +165,7 @@ Default is "info"\&.
 .B WORKER_POOL_SIZE
 Number of background workers\&.
 .br
-Default is 5 workers\&.
+Default is 16 workers\&.
 .TP
 .B POLLING_FREQUENCY
 Refresh interval in minutes for feeds\&.