#publish-options is an optional shortcut, if that functionality is not available, then we can still set the node access settings the long-way around (through its configuration).

Adding support for this will make PEP bookmarks work again on XMPP servers that don't support #publish-options.

https://xmpp.org/extensions/xep-0060.html#owner-configure

https://gist.github.com/iNPUTmice/7c52785ed69787516abb60e31703dbd2