Trigger ajax load via button

@solarDog

Blocks that are configured for ajax, get loaded automatically on page load currently. There is no functionality at this time to trigger via button. This would need to be added in.

- Would require a configuration option to trigger via button.
- Pass this configuration to drupal settings on js layer.
- Check for configuration and either load automatically and allow button to trigger block load. Probably have to tie click event against button or render a custom form with ajax button functionality.

Looking for a module similar to https://www.drupal.org/project/block_refresh for Drupal 9.

Specifically, refreshing a block every 5 secs (for an auction website).

@geoanders, would you be interested in discussing how we could build this functionality?

I don't mind writing a bit/most of the code.

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@nathan-tsai

I would create another feature request ticket for block refresh. As this ticket has a different ask.