Show icons for paragraph "actions"

Problem/Motivation

For things like duplicate/add-to-library/remove/etc.

See https://www.drupal.org/project/paragraphs/issues/2833874 ✨ Display icons paragraph instance Closed: outdated
which includes some design ideas. But very old and would need to be updated for the modern interface.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes