On the new architecture with Reanimated 4, BottomSheetModal.present()
called from a useEffect after a state update silently no-ops: the press
registered, open flipped to true, the effect called present() on a
valid ref - and nothing mounted (no onChange, nothing in the native
tree). Sheets that present() directly inside their press handler
(downloads, account picker) kept working, which is what pinned it down.
FilterSheet now takes a modalRef and the opener presents imperatively
from the gesture handler. The [open] effect only handles closing, and
never dismisses a modal that was never presented. The sheet also opens
immediately with a loader while options load, instead of the old
data-loaded press gate that left the button silently dead.
This restores genre/year/tag/sort filters in libraries and collections,
and the same pattern is applied to the bitrate/media-source/track
sheets that share FilterSheet.