Add filter by map bounds checkbox to SelectionPanel

- Remove map search input (was wrong implementation)
- Add checkbox "In map area" to filter list by visible map bounds
- Filter products/hubs/suppliers when checkbox is enabled
- Disable "load more" when filtering by bounds (client-side only)

i18n/locales/en/catalog.json

@@ -12,7 +12,7 @@
       "searchProducts": "Search products...",
       "searchSuppliers": "Search suppliers...",
       "searchHubs": "Search hubs...",
-      "searchOnMap": "Search on map..."
+      "filterByMap": "In map area"
     },
     "hero": {
       "title": "Find the best offer",

i18n/locales/ru/catalog.json

@@ -12,7 +12,7 @@
       "searchProducts": "Поиск товаров...",
       "searchSuppliers": "Поиск поставщиков...",
       "searchHubs": "Поиск хабов...",
-      "searchOnMap": "Поиск на карте..."
+      "filterByMap": "В области карты"
     },
     "hero": {
       "title": "Найдите лучшее предложение",