Enhance Icon Field Styling for Better Visual Consistency

Thanks for the work!
It help me re-factorize the css, add other themes compatibility.
It gave me an idea to follow up with a grid autocomplete result, could replace picker or give a lighter alternative.

Hi,

After updating to 1.1.0-beta5, I have the autocomplete results display broken in UI Suite Bootstrap.

See attached screenshots.

Moved to own issue 🐛 Layout Builder icon field Active