CategoryBrowseScreen and ExpandedStreamBrowseScreen are added; the
details / dev / dispenser / downloads / favourite / installed /
search / spoof / blacklist / accounts / about screens, StreamBrowse,
the onboarding MicroG page, the AppDetailsScreen plus the affected
viewmodels (AuthViewModel, ExpandedStreamBrowse, CategoryStream,
TopChart) are reworked to feed the new Compose entry points.
Also fixes CategoryBrowse pagination and the cluster-header
navigation regressions surfaced during migration.
0270dc6f39