Add 'Ghost Folders' for additional security and plausible deniability

[grb]

Your request seems very similar to this existing request:

Plausible Deniability - A way to offer more protection over passwords

That requires to set a second password that creates a 2nd vault. The password prompt would ask for password as usual. If the user enters the “real” password, he’s given the “real” vault. If the user enters the “other” password, he’s given the second vault. The second vault can be filled by the user with right and/or wrong passwords. People who need Plausible Deniability know how to use it. I think it can be a great addition to Bitwarden. And I don’t know of any password manager who has that. Ho…

I can merge the two, unless you feel that your concept of hidden folders (as opposed to a hidden vault) merits its own feature request.