CC-1976: Auto-expand the playlist box as the list grows
CC-1976: Auto-expand the playlist box as the list grows

Fixing issue introduced by my last commit, which made the click and drop area very small.
Also removed the wasted space at the bottom of the click and drop area.

thnkloud9/Airtime,radiorabe/airtime,Ryex/airtime,sourcefabric/airtime,Lapotor/libretime,Ryex/airtime,justvanbloom/airtime,LibreTime/libretime,justvanbloom/airtime,sourcefabric/Airtime,comiconomenclaturist/libretime,thnkloud9/Airtime,ReganDryke/airtime,justvanbloom/airtime,comiconomenclaturist/libretime,comiconomenclaturist/libretime,Ryex/airtime,LibreTime/libretime,Lapotor/libretime,justvanbloom/airtime,comiconomenclaturist/libretime,radiorabe/airtime,comiconomenclaturist/libretime,sourcefabric/Airtime,ReganDryke/airtime,sourcefabric/Airtime,sourcefabric/airtime,ReganDryke/airtime,justvanbloom/airtime,LibreTime/libretime,ReganDryke/airtime,sourcefabric/Airtime,sourcefabric/airtime,sourcefabric/Airtime,Ryex/airtime,thnkloud9/Airtime,Lapotor/libretime,comiconomenclaturist/libretime,Ryex/airtime,radiorabe/airtime,LibreTime/libretime,thnkloud9/Airtime,Ryex/airtime,radiorabe/airtime,ReganDryke/airtime,thnkloud9/Airtime,sourcefabric/airtime,LibreTime/libretime,radiorabe/airtime,sourcefabric/airtime,ReganDryke/airtime,Ryex/airtime,sourcefabric/Airtime,justvanbloom/airtime,ReganDryke/airtime,sourcefabric/airtime,comiconomenclaturist/libretime,thnkloud9/Airtime,radiorabe/airtime,justvanbloom/airtime,LibreTime/libretime,Lapotor/libretime,sourcefabric/Airtime,Lapotor/libretime,thnkloud9/Airtime,radiorabe/airtime,sourcefabric/airtime,Lapotor/libretime