feat(video-player): add muted prop to VideoPlayer and handle mute state in playback

k-tv-frontend/app/(main)/tv/page.tsx

@@ -482,6 +482,7 @@ function TvPageContent() {
           className="absolute inset-0 h-full w-full"
           initialOffset={broadcast ? calcOffsetSecs(broadcast.slot.start_at) : 0}
           subtitleTrack={activeSubtitleTrack}
+          muted={isMuted}
           onSubtitleTracksChange={setSubtitleTracks}
           onStreamError={handleStreamError}
           onEnded={handleVideoEnded}