Rewrite Haiku Shortcuts preferences to use new ColumnListView
completed by: Josef Gajdusek
mentors: Scott McCreary, Adrien Destugues - PulkoMandy, Dario
The "Shortcuts" preferences in Haiku uses Santa's Gift Bag column list view. Not only this does not look good, it also has a restrictive license that doesn't allow us to easily modify it. Rework the Shortcut preferences so it uses the new ColumnListView class.
Shortcut prefernces (the clv folder should be deleted and the preflet made to use new CLV):
New Column List View:
Haiku track ticket: https://dev.haiku-os.org/ticket/11007