Open editors: drag image is not the same as explorer

[bpasero]

Steps to Reproduce:

1. drag an editor from the open editors view

=> the drag image is not the same as the explorer where we show the name, instead we drag the entire list element it seems

[isidorn]

fyi @joaomoreno I had to copy what the tree is doing here https://github.com/Microsoft/vscode/blob/release/1.19/src/vs/base/parts/tree/browser/treeView.ts#L1304

[joaomoreno]

Why not bring this down to the list?

[isidorn]

@joaomoreno i can do that. However the list would need to ask the client for the drag label. Should that be a part of list options or how would you like this?

[joaomoreno]

Oh yeah forget it... we made it that the list user implements dnd, completely spaced out there. Never mind!