**Related issue:** Resolves#43379
# Checklist for submitter
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
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## Summary by CodeRabbit
* **Style**
* Updated Windows MDM enrollment option labels from “Automatic/Manual”
to “Fleet agent-driven/End user-driven” and refreshed the related
on-page description/help text.
* Adjusted radio help-text spacing and added styling for label
formatting on the Windows MDM settings page.
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