Feature Request: dynamic message queue size

[tacman]

I've been playing around with htmx and sse (https://github.com/jolicode/symfony-htmx-demo) and thought a cool feature would be dynamically updating the number of messages in the message queue.

An easy way, of course, it just to continually poll for a snippet of html with the table data. The cooler way if mercure is available is to subscribe to a message monitor channel and update the number of messages in near real time, with no polling.

It's fluff, of course. But it'd be cool.

This could also be done with Turbo, and probably stimulus and a bunch of other ways.