Share a sort/filter sheet between InstalledScreen and BlacklistScreen via
new commons module (SortFilterState + SortFilterSheet + applyFilter/applySort
on InstalledAppMeta), persisted per-screen. InstalledScreen renders a new
InstalledAppListItem that surfaces size, last-update, and installer instead
of Play-listing extras. Blacklisted rows now desaturate their icons.
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