Method format_duration

src/components/audio_player.rs:321–326

(d: Duration)

        let minutes = total_secs / 60;
        let seconds = total_secs % 60;
        format!("{:02}:{:02}", minutes, seconds)
    }

    fn progress_fraction(&self) -> f32 {
        if let Some(total) = self.total_duration {
            if total.as_millis() == 0 {
                return 0.0;
            }