<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#39304 (part of #25080)
Implemented similar approach to
https://github.com/fleetdm/fleet/pull/39302, with the difference that
the list policies endpoint does not include a count, and there is a
separate endpoint. I extended the count policies endpoint to include an
`inherited_policy_count`.
# Checklist for submitter
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually