4990: Replace listboxes with NSTableView and NSOutlineView

👍 Gathering votes

The listbox from Sam has several redraw problems.x000D
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The scrollbars flash sometimes when loading data.x000D
It's not possible to draw just to the left of the scrollbar.x000D
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The last problem makes drag-and-drop a PITA. It's also not possible to give the sidebar the usual grey color.