* Rename SessionIdentity to PassThrough and make it part of ZTA
* Compute the ID at the Plug level, rather than ZTA level and
avoid storing it twice
* Stop the user "avatar" from flashing on initial render
* Do not duplicate identity data inside user data, rather keep
them distinct
* Add initial user config modal
* Assign user ids
* Update session data to hold user ids
* Get users list for specific ids
* Render user avatar
* User update
* Refactor user changes
* Subscribe to individual user updates
* Show users in side panel
* Add sidebar to homepage
* Don't generate the same color twice in a row
* Add documentation notes
* Fix tests
* Add tests
* Keep users in session data
* Rename color to hex_color
