Add address to subfolders in Dropbox integration

Add an option to add that address in the subfolder on Dropbox integration. This will help when we share for example the link with an editor that not use Spiro for video editing. Otherwise all the time they will have a folder called 02-Raw Videos.

I know one option would be sharing the main folder that contains the address , but would be more simple and avoid problems only sharing the folder that they need .