marwin aff4f5aef2 Mobile: hide volume, add PDF zoom +/- buttons, fix zoom scroll position ... - Hide volume label/slider/input on mobile (≤600px) - Add − and + buttons flanking the PDF zoom slider - Preserve scroll fraction across zoom changes in PDF scroll mode Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>		2026-04-02 12:22:04 +02:00
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app.css	Mobile: hide volume, add PDF zoom +/- buttons, fix zoom scroll position	2026-04-02 12:22:04 +02:00