allow typing/pasting of paths in the Path: text box OR - Go To Folder.... dialog box

[dtenenba]

Currently the Path text boxes in the left and right panes do not let you type in them. Their values are changed when you navigate the folder structure, and it looks like it stores previously visited directories that you can click on (after expanding the drop down), but you can't type or paste into the box, and here's an actual use case to show why that's needed:

We have a user who needs access to some directory on the local ("rhino") file system. Let's call the directory /a/b/c/d. She has access to that directory but not to some of the directories above it so she cannot navigate to the directory by navigating from /.
In this particular case, it is by design that she does not have permissions to those upper level directories, so asking helpdesk for a permissions change will not work.

There is a workaround to this, which is to create an SFTP cloud connection that goes directly to the directory the user needs:

But that's just a workaround....

I know this text box is complicated enough already. So maybe we need a separate button that lets you type/paste in a path, sort of like with Go/Go To Folder... menu item in the macOS Finder.

Sort of related to #161 . In fact this would break autocompletion as we cannot complete paths that we don't have permission to access. So this argues for a Go To Folder... type of solution.

[nathanthorpe]

This seems to already be implemented