[1.0.0-beta2] Attributes management

UI Styles and UI Icons share only one integration: Field Formatter when used as a block in Layout Builder.

Moved to beta1 because we need this to be done first: 🐛 [1.0.0-alpha3] Field formatters compatibility with Layout Builder Active

Putting a utility class on

don't do the expected result most of the time (CSS properties on HTML are not always applicable to SVG). Putting a utility class on don't do the expected result most of the time (only "wrapper" CSS can be applied: marging, shadow... not a lot) Putting a utility class on make sense, but that's not a common case Putting a utility class on is too specific, we d'ont knwo yet how it will behave