Revert internal poll interval, document consumer options

Author: GermanCoding

src/Motor.Extensions.Hosting.PgMq/Options/PgMqConsumerOptions.cs

@@ -3,9 +3,22 @@ namespace Motor.Extensions.Hosting.PgMq.Options;
 // ReSharper disable once UnusedTypeParameter
 public record PgMqConsumerOptions : PgOptions
 {
+    /// <summary>
+    /// The visibility timeout is the amount of time a message is invisible to other consumers
+    /// after it has been read by a consumer. If the message is NOT deleted or archived within
+    /// the visibility timeout, it will become visible again and can be read by another consumer.
+    /// </summary>
     public int VisibilityTimeoutInSeconds { get; init; } = 300;
 
+    /// <summary>
+    /// Maximum duration of the long-polling operation.
+    /// 5 is the default, same as in the upstream library.
+    /// </summary>
     public int PollTimeoutSeconds { get; init; } = 5;
 
-    public int PollIntervalMilliseconds { get; init; } = 5000;
+    /// <summary>
+    /// Delay between internal postgres checks of the queue.
+    /// 250 is the default, same as in the upstream library.
+    /// </summary>
+    public int PollIntervalMilliseconds { get; init; } = 250;
 }