Make fences available for all block types in layout builder

More than 3 years already passed, but still no progress in the mentioned core issues :( But Layout Builder becomes more popular, and we suffer from this missing feature in Fences!

Yes, we can use a working solution using other modules ( https://www.drupal.org/project/layout_builder_styles → or https://www.drupal.org/project/layout_builder_component_attributes → ), but they provide different UI to manage classes, that confuses content editors a lot!

And one more UX problem - we can't reuse the Fences pre-defined presets, if we use another module for Layout Builder blocks!

So, instead of waiting for a miracle from Core, let's implement a workaround, like other modules already implemented? With a bold caveat that this is a temorary workaround, and probably no migration paths will be available when (and if ;-) ) the core issue is fixed.

And returning to the issues:
- ✨ Support third party settings for components within a section Needs work - it's RTBC, so we can rely on it, but implement a workaround that will be easier to rework reusing the core issue.
- ✨ It's very difficult to alter forms of inline (content blocks) placed via Layout Builder Needs work - seems no progress, so let's implement an ugly and slow way to alter the forms, like in other modules, and a caveat that this works only for the specific cases.

I believe this way will be much better than just wait for the miracle next 3 years and more, and implement this features manually in the custom code for each your project!

I agree with you, we don't need or should wait for the core problem to be fixed, because that could be in 1 week or 10 years.

BUT, we don't use Layout Builder anymore. So we're happy to look at a solution, but we won't be coding it ourselves any time soon.

@murz: Totally agree with you and @thomas.frobieter. Feel free to create a MR. If it's a workaround that introduces smells, let's please put this into a separate submodule, so it's clearly encapsulated and can be removed easily one day, if Core will fix it.
Thanks!