[Client] Hiding tile look ats
[Client] Show skill level progress
[Client] Disable music for debugging

Until playing music and music settings are fixed,
avoid random crashes caused by ogg files.
[Style] Make scrollpanel transparent
[Client] Remove empty space left of expand log button
[Client] Always display players, NPCs and monsters

Fix #9996
[Engine-libGDX] Using new version of libGDX
[Client] Improved music playback

In case the music or sound volume is very low, the sounds are not
actually played anymore.