Right click file options

[erikbergsten]

When you right click a file of with an unsupported format you get a warning that the file can't be opened which makes it impossible to use the context menu (the context menu closes when you press the popup warning).

Tested on osx, occured when trying use "show in finder" on a pdf file.

[JeffryBooher]

@erikbergsten we are actually in the process of re-architecting the file tree so that it is possible to show the context menu of unsupported files.

Closing as duplicate of #7676