Improve catalog UX: remove category, add offers count, dynamic layout

- ProductCard: remove category field, add offersCount display
- CatalogPage: add fullWidthMap prop for map-only view
- catalog/index: pass fullWidthMap based on selectMode
- i18n: add offers pluralization

i18n/locales/en/catalog.json

@@ -32,6 +32,7 @@
       "noHubs": "No hubs found",
       "noOffers": "No offers found",
       "noResults": "No results found"
-    }
+    },
+    "offers": "offer | offers"
   }
 }