Add entity color scheme and improve map hover effect

- Add color scheme: product/offer=orange, supplier=blue, hub=green
- Remove 'location' filter (same as hub)
- Quantity filter appears only after product is selected
- Map hover shows 'target' ring effect (outer white ring)
- Tokens in header use entity-specific colors

i18n/locales/en/catalog.json

@@ -4,7 +4,6 @@
       "product": "Product",
       "supplier": "Supplier",
       "hub": "Hub",
-      "location": "Location",
       "quantity": "Quantity"
     },
     "search": {

i18n/locales/ru/catalog.json

@@ -4,7 +4,6 @@
       "product": "Товар",
       "supplier": "Поставщик",
       "hub": "Хаб",
-      "location": "Локация",
       "quantity": "Количество"
     },
     "search": {