Stop auto-opening the left sidebar when dragging files

[Steven]

One behaviour I have never been happy with is the left side-bar auto-opening when dragging files.
I have removed that behavior on the basis that playlists and computer folders can be displayed in dedicated panels to be dragged into

https://getmusicbee.com/patches/MusicBee32_Patched.zip

[psychoadept]

Hey, you beat me to it!  Thanks!