relates to #9147
add the setup assistant page to the UI. This includes:
- new setup assistant page
- uploaded profile and release device manually form
- preview for setup assistant flow
<!-- Note that API documentation changes are now addressed by the
product design team. -->
- [x] Changes file added for user-visible changes in `changes/` or
`orbit/changes/`.
See [Changes
files](https://fleetdm.com/docs/contributing/committing-changes#changes-files)
for more information.
- [x] Added/updated tests
- [x] Manual QA for all new/changed functionality
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Co-authored-by: Martin Angers <martin.n.angers@gmail.com>
