Drag & drop to open files works while modal dialog open

[peterflynn]

1. Try to close an unsaved file
2. While confirmation dialog is open, drag a file from the OS onto Brackets

Result: The file opens beneath the dialog, so the dialog is no longer referring to the current document.

Although nothing seems to go wrong with the dialog's behavior in this case, it's a little scary -- I wouldn't be surprised if we do have some dialogs that make assumptions about the current doc not changing between open & dismiss time.

[gruehle]

Reviewed. Medium priority to @RaymondLim.

[RaymondLim]

Nominating for sprint 32.

[JeffryBooher]

FBNC @peterflynn

[njx]

@JeffryBooher - when marking a bug FBNC, please remember to reassign it back to the filer. Thanks!

[peterflynn]

Confirmed

[JeffryBooher]

@njx my apologies. I did not realize that was part of the process.