Allow download limit for folders

[shirokoneko]

Hello,

I have a feature request to add download limits for folders.
I often share folders instead of individual files, and as of right now, this feature is not implemented for folders.

[Steve0t]

I would also like to request this feature be made available. ! Great little application, thank you!

[JojoBr0]

+1 for this feature
@skjnldsv