Increase the length of the "Custom Classes" field (128 characters to 256)

I think we should directly go up to 512 chars, times of expensive space are over...

There's no limit implemented. Once again it's just inherited from Drupal Core's (not helpful) limit: ✨ Increase or remove default textfield #maxlength=128 Active

We could just override the #maxlength from core here: https://git.drupalcode.org/project/layout_options/-/blob/8.x-1.x/src/Opt...

If we don't want to wait for the core fix.

Hi,

Ok to increase the maxlength.

Tests needs to be fixed.

Code quality needs to be fixed too but if unrelated I will try to fix it.

Thanks @grimreaper!

phpstan is indeed unrelated:

 ------ ---------------------------------------------------------------------- 
  Line   modules/layout_options_ui/src/Form/Settings.php                       
 ------ ---------------------------------------------------------------------- 
  28     Property Drupal\layout_options_ui\Form\Settings::$pluginCacheClearer  
         has unknown class                                                     
         Drupal\Core\ProxyClass\Plugin\CachedDiscoveryClearer as its type.     
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols   
  104    Call to method clearCachedDefinitions() on an unknown class           
         Drupal\Core\ProxyClass\Plugin\CachedDiscoveryClearer.                 
         💡 Learn more at https://phpstan.org/user-guide/discovering-symbols   
 ------ ----------------------------------------------------------------------

I'll try to fix the test now!

@grimreaper tests are green now, please have a look :)