<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#40789
Seems like on specific pages of server-side paginated tables, the
select-all header checkbox does not work. This happens when:
- the page has less than 20 rows (I think this is the default page size)
- AND not all the rows are selectable
`headerProps.rows` always contains all rows currently visible in the
table. Using rows also keeps the select logic consistent with the
deselect and "all selected" checks, which already used rows.
# 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] QA'd all new/changed functionality manually
### Before
Clicking on the table header checkbox doesn't perform any selection
https://github.com/user-attachments/assets/d5b1f2fc-1400-4f3e-a2b4-2ae6a3da65af
### After
https://github.com/user-attachments/assets/54a67707-7978-40ec-ba50-c146a67795b2
