Audio player: when in "remaining time" mode, it should be used for the miniplayer

Description

OP: https://forum.videolan.org/viewtopic.php?f=35&t=162461

Expected behavior

The mini player shows -x:xx when in remaining time mode

Actual behavior

It should the elapsed time

Steps to reproduce

1. Play an audio 2.Change to remaining time mode by tapping the time
2. Toggle down the audio player

Screenshot / video

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Context

App version

Android version

Device model

App mode

Smartphone