* Fixes#2508 - Offer user to transition to SSS
* Rename `HomeScreenBannerMode.shown` to `HomeScreenBannerMode.show`
* Generate and use preview tests for the migration banner
* Bump the RustSDK to v1.0.46
* Address PR review comment
* Replace Prefire with a very similar but simpler and more direct approach
* Move PreviewTest snapshots to their new location (snapshotting default, mirrors UITests)
* Update acknowledgements
* Switch snapshot configuration extensions to a custom version
* Exclude snapshots from the PreviewTests target
* Fix acknowledgements
* Rename snapshotting preference keys
* Remove `skipPackagePluginValidation`