We use this new widget in bot settings panels
(personal and org). It lets you re-assign a
bot to a new human user.
Ideally we can improve this code to use
our existing list widgets to make it more
performant for realms with lots of users.
This removes the weird edit-bot sidebar, replacing it with a modal,
matching our edit-user widget (and various similar ones).
Fixes#13644 by removing the buggy code.
Steve Howell
Jagan
Anders Kaseorg