Part of #20331
Related #21540

In #25791 added support for border-radius at both globally (theme.json) & locally (block atts, both client & server), as well as UI controls. #28049 added global support for border width, style, and color.

Tasks:

• Add UI for border width, style, and color. Pending decision from design Sidebar Controls & Component System #27331 (comment)
• Add support for block atts:
  • width
  • style
  • color