🎨 Palette: Improve accessibility of Copy button

[billlzzz10]

💡 What: Added aria-label, title, and aria-hidden="true" attributes to the icon-only CopyButton component.
🎯 Why: To provide an accessible name for screen readers, display a native tooltip on hover, and prevent screen readers from announcing decorative SVG icons, improving the overall accessibility and user experience of copying prompts.
📸 Before/After: No visual changes for non-assistive tech users, except for a native browser tooltip appearing on hover.
♿ Accessibility: Fixes a warning about missing accessible names on icon-only buttons and prevents redundant announcements of decorative icons.

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PR created automatically by Jules for task 6229443975324260280 started by @billlzzz10

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Summary by cubic

Improved accessibility of the icon-only Copy button by adding aria-label and title for a readable name and tooltip, and marking the SVG icons as aria-hidden so screen readers ignore them. The label switches between “Copy” and “Copied” based on state; visuals are unchanged.

^{Written for commit 5d6efaf. Summary will update on new commits.}

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Project	Deployment	Actions	Updated (UTC)
agent-library	Error		Jul 26, 2026 5:37pm

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