diff view: Implement DRAG functionality on file paths of old and new files to be able to drag the files to another tool.

You have a copy to clipboard on right-click already so this is a trivial change for you.

Add another option to the right-click, or what-ever, to allow users to DRAG the old FILE (since you already have it in the tmp directory) to another application ( beyond compare, windows file explorer directory, etc).

Do the same for the new file side also.

This way users can set a diff of the files they want then EASILY get the files via drag and drop.