Root folders show nothing in recent projects list after the "-" (no path or drive name)

[RaymondLim]

When you select a root folder as your project on Mac, then it will appear in the recent project list with a "-" at the end. On Windows, it also shows the drive name as in "projectFolderName - C:".

So if we cannot show something as on Windows, then we should not append the "-".

[peterflynn]

Clarifying title to indicate that most folders on Mac don't have this problem.

I think we should show "- /" at the end in this case.

[RaymondLim]

Showing "- /" is fine for me too.

[pthiess]

Reviewed - edge case. Not a priority, probably a starter bug. Also choosing the root folder it should show slash in the project panel instead of nothing.

[njx]

For the recent projects dropdown, I think it should just show "/" (with no "-" after it).

[jbalsas]

Looking at this one... what should it say in the end? :)

[RaymondLim]

Fix verified.