11.0-dev
tooling: Move email_log.py to development only views.
models: Extract zerver.models.clients.
thumbnail: Do not Camo old thumbor URLs; serve images directly.
users: Remove unnecessary get_api_key helper.
do_change_user_delivery_email: Add acting_user kwarg.
python: Simplify with str.removeprefix, str.removesuffix.
registration: Ask user how they found Zulip.
showroom: Rename dev/design-testing -> showroom.