derive SearchAPI display plugins from Views block plugins in a more generic way

Problem/Motivation

SearchAPI derives a SearchAPI display plugin for every display of every view for the Views display plugins that are in core.

So for example, Drupal\search_api\Plugin\search_api\display\ViewsBlock declares a display plugin for the 'block' Views display plugin, and the deriver Drupal\search_api\Plugin\search_api\display\ViewsDisplayDeriver then derives a plugin for every block display in every view.

Some contrib modules define further Views display plugins, and therefore they should ideally declare SearchAPI display plugins for these -- see ✨ integration with Search API Active for example.

However, I am wondering whether for Views display plugins which are block-like, whether SearchAPI could be looser in what it does, and handle all Views display plugins whose classes inherit from Drupal\views\Plugin\views\display\Block.

Steps to reproduce

Proposed resolution

Remaining tasks