Dashboard fixes: staleness, toner, layout

frontend/src/components/dashboardCards.js

@@ -75,6 +75,20 @@ export function mapLink(card, item) {
   return missing ? null : href
 }
 
+// How many rows a card shows before collapsing the rest behind a count. A card
+// listing forty PCs is a report someone has to read, not a board someone can
+// scan - and it pushes every card below it off the screen. Five is enough to
+// see the shape of the problem; the link goes to the full list.
+export const MAXROWS = 5
+
+export function visibleRows(card) {
+  return cardRows(card).slice(0, MAXROWS)
+}
+
+export function overflowCount(card) {
+  return Math.max(0, rows(card).length - MAXROWS)
+}
+
 export function cardRows(card) {
   return rows(card).map((item) => ({
     title: mapTitle(card, item),