[Android] Fix fastscroller behavior

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Fri Oct 13 10:23:31 2023 +0200| [79ba0eeeb80d01952e8f0ea05ec91bf07fe87611] | committer: Duncan McNamara

Fix fastscroller behavior

Fixes #2995

> https://code.videolan.org/videolan/vlc-android/commit/79ba0eeeb80d01952e8f0ea05ec91bf07fe87611
---

 .../vlc-android/res/layout/audio_browser.xml       | 114 +++++++++++----------
 .../videolan/vlc/gui/audio/AudioBrowserFragment.kt |  28 +++--
 2 files changed, 74 insertions(+), 68 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/79ba0eeeb80d01952e8f0ea05ec91bf07fe87611