fix(media): catch autoplay rejections from play()

Notification sounds called `audio.play()` without handling the promise,
so every message that arrived before the user interacted with the page
(e.g. right after launch) logged an uncaught NotAllowedError — 15 in a
short test run. Same pattern in the video thumbnail loader, the voice
preview (which now also resets its Play button) and useMediaPlay.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

src/app/components/VoiceMessageRecorder.tsx

@@ -383,7 +383,7 @@ export function VoiceMessageRecorder({ onSend, onError }: VoiceRecorderProps) {
                 audio.pause();
                 setPreviewPlaying(false);
               } else {
-                audio.play();
+                audio.play().catch(() => setPreviewPlaying(false));
                 setPreviewPlaying(true);
               }
             }}