Trash and Shares built their mobile lists eagerly via NooGroupedList's
own Column instead of a lazy sliver, so an account with hundreds of
items made those tabs laggy - both now use a SliverList/
SliverChildBuilderDelegate instead, matching Files' own lazy list,
while keeping the same one-continuous-card look via per-row corner
rounding and a 1px divider.
FilesControlsRow's sort/filter sheets also had a live-update bug: since
showNooSheet's children are built once up front, tapping a row inside
the open sheet updated the controller but the already-built
checkmarks/toggles stayed stale until the sheet was closed and
reopened. Wrapping each sheet's content in a ListenableBuilder fixes
that.
Also adds NooSelectionBar to styling.md's widget inventory table.
ayushya
c9889c69b8