Auto-geocode tenant/store address into latitude/longitude on onboarding

Both the tenant onboarding and store/branch forms only had free-text
address fields with no coordinates captured, even though the backend
already accepts and stores latitude/longitude on both tenants and
tenantlocations. Wires in the existing keyless AddressAutocomplete
(Nominatim) component used by UsersPanel so picking an address also
geocodes it, and threads latitude/longitude through both create payloads.

src/services/fiestaApi.ts

@@ -1037,6 +1037,8 @@ export interface CreateTenantLocationPayload {
   city?: string;
   state?: string;
   postcode?: string;
+  latitude?: string;
+  longitude?: string;
   applocationid?: number;
 }
 
@@ -1050,6 +1052,8 @@ export interface CreateTenantInput {
   city?: string;
   state?: string;
   postcode?: string;
+  latitude?: string;
+  longitude?: string;
   approved?: number;
   status?: string;
   applocationid?: number;