document "app sets"

Merge remote-tracking branch 'origin/v3' into v3

fix /connected_users admin api response example

Source code: Tiny rearranging and fix lxn win name

Source Code: Update client components

also document /users and /disabled_users API calls

replace -d with --data-urlencode in curl examples

fix link to nbuilder.deb

add new "Source Code" page

mention that ORIGINATING_IP is only for OpenVPN

fix link to builder.rpm

document `/disable_user` and `/enable_user`

mention /connected_users Admin API call

also document resource capabilities session expiry format

mention Fedora 39 as supported

Server Discovery: Add myself as owner to fkooman public key

Server discovery: Remove old minisign public key info

The ~~ ~~ table cells weren't rendering anyways with mkdocs

fix some typos

fix version constraint

improve permissions docs