Document how to save KeePassX settings using Dotfiles

The KeePassX database is stored in persistence by default but not the KeePassX settings.

We could add a "

" in the KeePassX documentation about how to store these using the Dotfiles persistence feature.

Feature Branch: doc/10046-persistent_keepassx_settings

Original created by @sajolida on 10046 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information