🎨 Palette: Accessible Search Feedback and Persistence

[anaxifty]

Implemented a suite of micro-UX and accessibility improvements for the AI Studio interface.

💡 What:

• Added descriptive aria-label attributes to all icon-only buttons (Send, Stop, Attach, Voice, IDE actions, Canvas) and marked their SVGs as aria-hidden.
• Enhanced search accessibility by adding role="status" and aria-live="polite" to empty state messages in the sidebar, model selector, and rewrite picker.
• Improved sidebar search UX by making the filter persistent during conversation actions (pin/delete) and auto-clearing it for "New Chat" sessions.

🎯 Why:

• Ensures the interface is fully usable by screen reader users who previously lacked context for many controls.
• Provides immediate, accessible feedback when searches yield no results.
• Eliminates a common frustration where search filters were lost during routine conversation management.

♿ Accessibility:

• Complies with WCAG guidelines for accessible buttons and dynamic status updates.
• Reduced screen reader noise by hiding purely decorative icons.

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PR created automatically by Jules for task 5018294565197886880 started by @anaxifty

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[cloudflare-workers-and-pages]

Deploying neuraldock with    Cloudflare Pages

Latest commit:	96c446d
Status:	✅  Deploy successful!
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