Add ability to set styles for section's regions

Going to take a look at this.

I used the existing patches as a guide for what to add and where, but ultimately they were too out-of-date to be applied. The underlying logic had changed quite a bit, so some rewriting was necessary. Also the patches contained some unrelated changes that I didn't think were important to capture as part of this update.

What I pushed so far isn't working for me yet, but I'm not sure why. I figured I'd push what I have in case anyone else wants to take a look in the meantime.

Not really sure why the tests are failing at this point.

I took this on as an investigation to understand how we might use these options as an alternative for using a view to apply styles to a set of fields in a sidebar region. I don't think we are going to use this to solve that particular challenge, so I have put in about as much time as I can afford at the moment to move this forward. I still believe it is potentially valuable.

There was not a lot of information in the IS, so I made some interpretive leaps with how this should be handled. I essentially made it so that regions could have their own styles by adding a new style type. Except for that the storage was set up that way, I don't really get why a style can only be of one type. It seems like it would potentially be useful for a style to be applied to a block, region, or section. Groups don't care about the style type, so you can adding styles with different types to the same group.

Ultimately, I accomplished a lot of this by reusing existing code and making it work for looping through regions. There is definitely some refactoring that could happen to shrink the footprint.

I updated the version because I'm assuming this new functionality will go into the most recent version of the module.

Rerolled the patch.

The path is working for me.

https://www.drupal.org/files/issues/2024-02-19/layout-builder-styless-cl... →

After apply patch navigate to Administration > Configuration > Content Authoring > Layout Builder Styles and add styles for region.

The option for section configuration will be show as below.