fix(icons): changed brackets icon

[jguddas]

What is the purpose of this pull request?

• Other: Icon update

Description

Arcified icon.

Before Submitting

• I've read the Contribution Guidelines.
• I've checked if there was an existing PR that solves the same issue.

[github-actions]

Added or changed icons

Preview cohesion

Preview stroke widths

DPI Preview (24px)

Icon X-rays

Icon Diffs

Icons as code

Works for: lucide-react, lucide-react-native, lucide-preact, lucide-vue-next

const BracketsIcon = createLucideIcon('Brackets', [
  ["path",{"d":"M16 3h2a1 1 0 0 1 1 1v16a1 1 0 0 1-1 1h-2"}],
  ["path",{"d":"M8 21H6a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h2"}]
])