groceries/picnic: label the Picnic Family member discount

src/lib/server/groceries/picnic.ts

@@ -123,7 +123,12 @@ export function picnicItem(
 		sizeText: texts[0]?.trim() || null,
 		priceCents: promo ? ref : now,
 		promoPriceCents: promo,
-		promoLabel: promo ? promoText?.trim() || 'Actie' : null,
+		// "Family" is Picnic's member discount (Picnic Family), not a store-wide promo.
+		promoLabel: promo
+			? promoText?.trim() === 'Family'
+				? 'Picnic Family-korting'
+				: promoText?.trim() || 'Actie'
+			: null,
 		storeUnitPrice: null,
 		storeUnitBasisCents: null,
 		category: cat.category,