9.2
analytics: Better indexed join to analytics_usercount, using realm_id.
settings: Rework how push notifications service is configured.
models: Migrate ids of all non-Message-related tables to bigint.
refactor: Rename `huddle` to `direct_message_group` in non api files.
ruff: Fix UP035 Import from `collections.abc`, `typing` instead.
Create "analytics" app with activity reports.
ruff: Fix UP007 Use `X | Y` for type annotations.