🎨 Palette: Use semantic time elements for clocks to prevent screen reader interruption

[schmug]

💡 What: Replaced <span aria-live="polite"> with semantic <time dateTime={now.toISOString()}> for the clock components in the Desktop Taskbar and Mobile StatusBar.
🎯 Why: Elements with aria-live="polite" cause screen readers to announce changes every time the content updates. For continuously updating clocks, this causes a frustrating and disruptive experience by interrupting the user every minute. Using semantic <time> elements provides accessible structure without forcing repetitive announcements.
♿ Accessibility: Eliminates a major source of screen reader interruption while preserving semantic time representation for assistive technologies.

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PR created automatically by Jules for task 2251755531838652623 started by @schmug

[google-labs-jules]

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