Resolves#41863
- [X] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [x] QA'd all new/changed functionality manually
Tests performed on the following OSs:
- Windows (arm64)
- macOS (Apple silicon)
- Linux (arm64)
- Linux (amd64)
Features tested on the OSs above:
- "My device".
- Restart fleetd.
- Kill fleet desktop, should re-start.
- Killing stale osqueryd processes on orbit startup.
- Checking if osquery is up and running, exit and start.
- Checking if Fleet Desktop is already running before launching it.
- orbit auto update
- Gracefully shutting down Fleet Desktop before restarting it
---
## fleetd/orbit/Fleet Desktop
- [X] Verified compatibility with the latest released version of Fleet
(see [Must
rule](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/workflows/fleetd-development-and-release-strategy.md))
- [x] If the change applies to only one platform, confirmed that
`runtime.GOOS` is used as needed to isolate changes
- [x] Verified that fleetd runs on macOS, Linux and Windows
- [x] Verified auto-update works from the released version of component
to the new version (see [tools/tuf/test](../tools/tuf/test/README.md))