- a decade cell is a 36-high box with its count under the year (owner A)
- arrow keys walk the cells: along a decade, then to the nearest year below
- clearing the kept older year hands the focus on instead of dropping it
- More... shows while a year with titles is hidden, as a plain chip
- the decade caption is not read twice; the Plex range fields have names
- one Plex year is labelled 1999, not 1999-1999, via oneYear/singleYear
- tests for the Plex wiring and the feed year clearing the upload date
A shared YearPicker: the recent years as chips with their counts, and a
More dialog that lays every year out by decade (sortable by count), so a
ninety-year library fits on one screen. The feed's scrolling popover gives
way to it; the Plex rail gets it above its range fields, a pick setting
both ends. The Plex facets now count titles per year, the year filter left
out.