UI improvements: filters, map layout, search bar

- Add hubCountries query and country filter for hubs page
- Add getAvailableProducts query for offers (only products with active offers)
- Add sourceLatitude/sourceLongitude to orders GraphQL
- Fix ListMapLayout with position fixed for proper map height
- GlobalSearchBar: make fields wider, remove unit selector
- Remove status/isVerified filters from suppliers/offers (backend handles this)

graphql/operations/team/orders/GetTeamOrders.graphql

@@ -6,6 +6,8 @@ query GetTeamOrders {
     totalAmount
     currency
     sourceLocationName
+    sourceLatitude
+    sourceLongitude
     destinationLocationName
     createdAt
     orderLines {