Sort and the view switcher are tightly bound to the grid, so pin them to the
right of the applied-filter row (directly above the cards) instead of the filter
toolbar; they render there on both the feed and channel-scoped views.
ActiveFilterChips now shares that row with the controls and trims itself so it
never crowds them, measuring fit off a hidden mirror of the full chip set:
- wide -> show as many chips as fit, then a "+N" pill whose popover holds the rest;
- narrow -> collapse every chip into one "N filters" pill whose popover holds them all.
Both popovers list the (overflowed / all) chips, each removable, plus Clear all.