refactor(ui): move 62 hand-written empty states onto EmptyState

The admin sections, the cycle, illness, medication, mood, records and
settings cards, the pickers and dialogs said nothing-here-yet in a
hand-written muted paragraph in five sizes and three alignments. List
and section states now render through EmptyState (plain, compact; the
three with a next step carry it as the action), and the six chart
bodies through ChartEmptyState at their former height. The thirteen
that stay are a field without a value or a hint inside an editor, not
a list state. The ratchet ceiling drops from 75 to 13.

src/components/measurements/measurement-list.tsx

@@ -1936,9 +1936,11 @@ function DayDrillDown({
   const rows = data?.measurements ?? [];
   if (rows.length === 0) {
     return (
-      <div className="text-muted-foreground py-2 text-xs">
-        {t("measurements.emptyDescription")}
-      </div>
+      <EmptyState
+        variant="plain"
+        size="compact"
+        title={t("measurements.emptyDescription")}
+      />
     );
   }
   // v1.11.5 — for SLEEP_DURATION the drill-down rows are stage segments;